Cameroonian customers cooperated with us for the first time. Now the 3 axle low bed trailer is being packed and ready to be shipped to Cameroon. Here are some pictures of the package low bed semi trailer. TITAN's lowbed semi trailer will spray thick wax on the outer layer and wrap it with rain cloth to prevent seawater erosion. There are some unscrupulous merchants, in order to save costs and maximize profits, there is no wax and rain cloth. When the final customer received the semi-trailer, a large area of â??â??the semi-trailer was rusted. Compared with these unscrupulous merchants, TITAN's service quality is more humane and more textured. Here are some point of low loader trailer: In infrastructure construction sites, since excavators and loaders are not easy to move by themselves on ordinary roads, vehicles need to be used for transportation. TITAN low loader trailer specializes in transporting mechanical products such as excavators, loaders and harvesters. It adopts well-known channel steel and has strong support for the whole vehicle. The bucket and stringer design are more durable. The vehicle is equipped with a rear ladder, which can be lowered to reduce the climbing angle of the loader, excavator and other trailers, and is equipped with high-strength springs to easily retract the rear ladder. In order to avoid large-scale rolling of the tires during transportation, the bottom plate is equipped with anti-skid strips and limit devices, which can effectively reduce the activities of the towed vehicle during transportation and improve transportation safety.
We showed customers more details and advantages, video drawings and detailed quotations for customers' reference. Every detail considered fastidiously and every producing process is supervised carefully and controlled effectively by our excellent quality testing personnel. Strict quality control enables us to produce the perfect tanker trailer to meet your needs and make benefits for you. Of course, customers are also talking with many suppliers. The end customer chooses to cooperate with TITAN. What customers value most is the quality of TITAN fuel tanker trailer, including with the latest automatic welding machine for welding the tank body; The tank is shaped by one-time; Advanced paint system & polyurethane paint; Advance weld technology, etc
The tri-axle low flat bed trailer 60 tons with a low loading height and high payload . It is widely used to carry construction machinery , tracked vehicles , wheel loaders , vessels , boats, combine harvesters , machine parts or prefabricated sections .CIMC production the semi low bed trailer 60 tons can carry capacity between 40 tons to 80 tons,and we can provide our customers with different tonnage lowbed trailer to meet customer requirements. Low bed trailer sare the economic and flexible solution for numerous different tasks in heavy duty or special transportation . Main specification: Brand: CIMC tri-axle low flat bed trailer 60 tons Dimension(mm): 13000*3000*3400mm Loading capacity(T): 40-60T Axle: 3 axle,13T/16T, FUWA / BPW / CIMC/Other Brand Tire: 8.25R20/10.00R20/11.00R20/12.00R20 Suspension: Mechanical suspension or air suspension Kingpin: 90# Landing gear: JOST brand Brake system: WABCO Light:LED light Electrical System: 24-volt lighting system
Container tipping chassis trailer: The striking feature with the tipper container chassis trailer is a mechanism that makes it easy to unload the container.There are apparatus added as modifications to the conventional chassis trailer models further simplifying the process of offloading cargo from the container. The hydraulic system mounted on the upper platform facilitates the offloading process causing the container to tilt upwards to offload cargo.It is definitely one of the safest means of offloading shipping containers. There is a roller situated at the upper frame, some distance from the pivot device connecting it to the lower frame. However, it presents a very convenient option for use in the transportation of cargo using containers.The pivotal drive on the upper frame translates to a change in the distance between the roller and the securement point of the cable in relation to the lower frame.This results in the lift and movement of the loaded container without the need to search for external equipment such as a winch device to trigger the desired distance. The roller rotates around the point of mounting on the upper frame. Movement of the roller can now be realized in relation to the lower frame.Ideally, the Tilt Container Chassis comprises upper and lower frames attached by way of a pivot device. In such an arrangement, no external equipment will be required for offloading cargo from the container. The trailer comes with an hydraulic lifting cylinder that contracts longitudinally to facilitate loading and on the other hand, they extend in an outward manner to enhance the offloading process. Advantage: 1. Double-plate main beam for heavy-duty dump trailer, which have stronger carrying capacity, it is not easy to damage. 2. Hydraulic cylinder: The heavy-duty cylinder with a wider diameter, stronger lifting capacity and higher height, which makes the lifting more stable and does not easy to roll over. 3. with 4 units vice beam and cross balance beam. The lattice structure of the side door makes the side door more solid. 4. Flip Bracket: 4 units flip brackets, which can make the rear end more evenly loaded during unloading, and it is not easy to damage the trailer. 5. The leaf spring is widened and thickened, the shock absorption effect is good. 6. Strengthened Ribs, unique structure design to maximize the payload. Specificationï¼? Overall dimensionï¼?13000mm * 2500mm *2900mm Loading capacity: 40T Axlesï¼?2 axles Suspensionï¼?Heavy duty mechanical suspension Tipping system: 196 hydraulic cylinder Tireï¼?8 units King pinï¼?90# Landing gearï¼?JOST Brake system: WABCO Electrical system: 24V, LED lights
Tipper Semi trailers are mainly used in civil engineering, often combined with excavators, belt conveyors and other construction machinery to form a loading, transportation, and unloading production line for earthwork, sand, and bulk materials. The loading and unloading transportation work; of course there are many other tractor tipper trailer such as mine dump trucks used to transport coal mines, sand and gravel; sanitation green dump trucks used to transport garbage and so on. It brings great convenience to people's production and life. How to improve the safety of dump trucks? Although dump trailer owners drive carefully, traffic accidents still occur. In traffic accidents, the most frightening thing is dump trucks. Due to the high quality, difficult braking, and large blind spots, the loss caused by accidents is unimaginable. However, as long as the safety performance of the dump truck is in place, the safety is still guaranteed. Anti-rollover configuration Dump truck rollover is a common traffic accident. The body of the triple axle dump trailer is not easy to control and it is difficult to turn. There are not many rollover accidents. Moreover, in rainy or snowy days, the driving conditions are complicated and problems are more likely to occur. The front and rear axles of the car chassis are now equipped with stabilizer bars to prevent rollover, which greatly improves safety performance, and there is also a lateral dual hydraulic shock absorber under the cab, which also has the prevention Roll function. Brake configuration The end dump trailer has a heavy weight and long braking distance, especially after loading the cargo. However, in the current dump trucks, there is no upgrade of the vehicle in this configuration, which makes the safety performance unchanged. The brake pads of the dump truck have been greatly upgraded in this respect, and they are also equipped with an ABS anti-lock brake system, which makes the braking distance of the vehicle shorter and the safety more guaranteed. Tire pressure monitoring configuration As the only part of the tipper semi trailer that contacts the ground, the tire pressure actually affects the safety of the vehicle to a large extent, but the dump truck transportation generally has a long working cycle, and the driver will be very tired after working for a long time, so I will not pay attention to these details. The change of vehicle tire pressure will affect the fuel economy and safety of the vehicle. If the tire pressure is not kept within the normal range in time, it may cause an increase in fuel consumption or a tire burst. The driver can keep track of the tire pressure of the vehicle at any time, so as to adjust in time, so as to avoid the loss caused by the tire pressure being too high or too low, and driving is safer.
CIMC has many companies around the world, and the reputation of CIMC is also among the best in the semi-trailer industry. At the same time, CIMC has a large market in Mozambique. Many customers have found us through our website. This Mozambique customer also purchased 10 unit fence trailer from our company before. This time, our customer came to us again and explained the demand. He wanted to buy 6 units flatbed trailer. How to maintain a flatbed trailer? Check the braking system Clean the gasoline filter, fuel tank and oil pipeline to keep it clean and smooth. Check and adjust the working pressure of the gasoline pump to keep it normal. Once the air resistance appears, it should stop to cool down, disassemble the carburetor inlet pipe joint, pull the gasoline pump hand rocker to make the gasoline fill the oil pipe, and restore the normal fuel supply. In order to prevent the gas supply system from generating air resistance, a cold compress is usually used to reduce the temperature and make the oil supply smooth. Insulation pads can also be added, asbestos plate gaskets are added between the cylinder and the gasoline pump to reduce the heat transferred from the engine to the gasoline pump and prevent air resistance. In addition, the use of electric gasoline pumps is an effective way to prevent air resistance. Prevent deflagration Attention should be paid to maintaining the normal temperature of the engine, appropriately delaying ignition and enriching the mixture in advance. At the same time, the carbon deposits in the combustion chamber, valve head and other parts should be thoroughly removed in time. In addition, the flatbed semi trailer should choose a suitable speed before going uphill again. Maintaining good power, preventing the vehicle speed from being too fast or making the mixed gas slightly lean, can effectively prevent the occurrence of deflagration. Check the tires Check the tire pressure to make sure that there is no lack of air or debris, and then see if the steel ring is deformed or cracked. Before leaving the flatbed trailer, the tire pressure should be properly reduced. When resting during driving, check the tire temperature and pressure in time. If tire temperature and tire pressure are found to be too high, do not deflate or pour cold water. Instead, choose a cool place to stop and let the tire cool naturally.
CIMC has many companies around the world, and the reputation of CIMC is also among the best in the semi-trailer industry. At the same time, CIMC has a large market in Mozambique. Many customers have found us through our website. This Mozambique customer also purchased 10 unit fence trailer from our company before. This time, our customer came to us again and explained the demand. He wanted to buy 6 units flatbed trailer. Shipping container trailer is usually used to transport 20ft or 40ft containers, they are mainly used for container transportation supporting ships, ports, shipping lanes, highways, transit stations, bridges, tunnels, and multimodal transport. Use platform trailers to transfer cargo at the shipper's warehouse. Unloaded to the consignee's warehouse, when changing trailer or boat on the way, there is no need to take the goods out of the box and change them. The size of the container trailer loading area is determined according to the standard container size. A twist lock device for fixing the container is provided at positions corresponding to the four corners of the bottom of the container. Flatbed trailers are special trailers for transporting containers.
CIMC 40ft shipping container trailer description CIMC Flatbed trailer can load 1x 40ft container and also can transport 2x20ft container ,When shipping a 20ft container separately that put it in the middle of the flatbed trailer .this kind of trailer mainly transporting container, what's more ,It can also transport bags of chemical fertilizers, wood, steel bars, boxes and other more easily fixed goods. CIMC 40ft shipping container trailer is the most popular model. According to the length, we can also offer the 45ft 48ft 52ft, 2axles/3axles/4axles, the capacity from 35 ton to 60 ton. For the types, we can also make the flatbed with side wall, side panel with fence, or with front board, or with Columns to load the logs. Specification: Overall L*W*H: 12400*2500*1550mm Payload: 60 tons Axles: 13 tons / 14 tons / 15 tons /16tons / 20 tons ( Fuwa/BPW /CIMC or other Chinese famous brand ) Tire: 12.00R20 / 11.00R20 / 12R22.5 / 385/65R22.5, optional Landing gear: JOST Kingpin: 50(2inch)#or 90(3.5inch)# bolted type Suspension Mechanical: / airbag / bogie suspension Brake system: WABCO brake system with dual brake chambers and emergency brake valve Container lock: 12 pcs Accessories: Tool box , spare tire carrier
The suspension is an important part of flat bed semi trailer connecting the chassis to the frame. The vehicleâ??s supporting force, braking force, driving force, etc. are all transmitted through the suspension system. It can also reduce the impact of bad roads on vehicles and ensure the stability of vehicles. Suspensions are generally divided into independent and non-independent suspensions. For semi-trailers, non-independent suspensions are used because of the need for strong carrying capacity. There are 3 kinds of common suspensions for flatbed container trailer: 1. Bogie suspension The bogie suspension is to reduce the common leaf spring front and rear brackets to a single bracket connected to the car body. Its load point is shared on the front and rear axles. Compared with ordinary leaf spring suspension, the bearing capacity of bogie suspension is bigger. This suspension is less commonly used on ordinary semi-trailers, mainly on heavy vehicles. This 2 axle flatbed trailer from TITAN uses bogie suspension. If you are interested in this trailer, you can click â??Bogie Suspension Flatbed Trailerâ?? to learn more. 2. Mechanical suspension The mechanical suspension is our common leaf spring. It is mainly composed of a leaf spring, suspension support (commonly known as lifting gear), connecting rod, U-bolt, and other parts. The longitudinal force of the body falls directly on an axle. The biggest advantage of this suspension is that it is cheap, reliable, and easy to maintain. At present, more than 80% of ordinary semi trailers use a leaf spring balanced suspension. 3. Airbag suspension The most obvious feature of an air suspension is its airbag-type air spring. The weight of the air spring itself is relatively light, the air medium friction in the airbag is small, there is almost no noise during operation, and its life is 2-3 times that of the leaf spring. However, when using an air spring, a rod system capable of transmitting various forces and moments other than the vertical force must be provided, so the suspension structure is complicated; in addition, the airbag spring has strict requirements on sealing and its cost is also high. At present, airbag suspension for semi-trailers is mostly in high-end fields such as precision instrument transportation and hazardous chemical transportation.
Container chassis semi-trailer is used to transport containers, and container chassis trailers have different shapes and sizes. Each of its major components and system quality will be useful for the trailer you buy or rent. Below we will introduce the specifications, application, drawing and maintenance of container chassis trailers. Application of skeleton trailer 1. Specially used for transportation of various containers. It can be used repeatedly for a long time, with sufficient strength. 2. Use containers to transfer goods, which can be loaded directly in the consignor's warehouse and shipped to the consignee's warehouse for unloading. When replacing the tri axle chassis for sale or ship midway, there is no need to take the goods out of the box and replace them. 3. It can be quickly loaded and unloaded, and it can be directly and conveniently changed from one transportation tool to another transportation tool. 4. Terminal trailer is easy to load and unload the goods to meet the individual needs of customers. Specifications of Container Skeletal Trailer Size: Container chassis trailers come in different sizes and can hold 20-foot or 40-foot containers. There are also some containers suitable for carrying 45-foot containers, if you need more special design, we can provide customized services. Axle: According to the axle configuration, a 30-ton axle with 2 axles is usually obtained. For this option, the maximum weight of a 40-foot container is 25 tons. We can also customize 3-axis container chassis according to different needs. All these options will be provided to you according to your needs. Design: Due to its application and use, container chassis trailers are made of high-strength materials. It is a rugged structure designed to provide you with the services you need without having to do a lot of manufacturing work through high-quality welding techniques that have been tried and tested to ensure that the skeletal trailer meets high quality standards . Load capacity: Our trailer has a load capacity of 20 to 60 tons. However, for most containers to be transported, the 20-ton option is sufficient. This is a very important aspect when choosing a container chassis trailer. Tires: Be sure to confirm the laws and regulations regarding tire configuration in your country. Some countries only allow the use of a single tire option, which means that if you choose this option, you need to allocate tires appropriately for the container moving trailer.
Dump semi trailers are suitable for the transportation of bulk scattered goods such as coal, ore and building materials. Dump semi-trailers can be divided into two categories according to their uses: one is heavy-duty and heavy-duty dump trailers for off-highway transportation, which mainly undertake large-scale mining, engineering and other transport tasks, usually used with excavators. Another kind of light, medium and medium-sized ordinary self-unloading trailers used in highway transportation mainly undertake the transportation of loose goods such as sand, clay, coal and so on, usually used in conjunction with loaders. CIMC company can supply U-trailers for lightweight cargo, please see the pictures below. Specification: capacity: 40 cubic u-trailers Model: U -model Axle: 6 axle ,Fuwa axle Hydraulic system: HYVA cylinder Suspension: Mechanical suspension King pin: 3.5' bolt- in kingpin 90 Landing gear: Jost Braking system: WABCO Tire: 12.R22.5*12
TITAN cement tanker trailer is mainly used in the logistics system of engineering construction, long-distance freight, transfer station, and professional powder material transportation. The TITAN bulk cement tank trailer has only one silo, simple structure and beautiful appearance. The tank uses a fluidized structure without side plates, which is convenient for daily maintenance. The design of the tank without a brace structure meets the lightweight requirements of the vehicle. When unloading, the initial pressure build-up in the tank (allowing the gas pressure to reach a certain value) takes a short time, the unloading speed is fast, and the remaining material is small. The operation is very simple during the unloading operation. The whole vehicle is light in weight and has a low center of gravity. The driving is relatively stable, transporting cement, fly ash and other media.
Product description: CIMC 3 axle 40ft container chassis are designed for marine container and sea freight transport tasks and combine both safe and rapid container handling. The welded container trailer possesses a long service life even under the tough conditions which a semi-trailer container skeletal trailer has to face on a daily basis.Main beam structure desgin resonable,light weight and large design load capacity. Specification: Overall L*W*H: 12400*2500*1550mm Load weight:40 tons ~70 tons Axles: 3x13 tons / 14 tons / 15 tons /16tons / 20 tons Tire:12R22.5 Landing gear: JOST Kingpin: 50(2inch)#or 90(3.5inch)# bolted type Suspension: Airbag / Mechanical / bogie suspenion Brake system: Wabco Electric system: 24V / 12V + LED lights Accessory: spare tire carrie + tool box Remark: we can supply different specification for different road condition Advantages 1>Light dead weight, strong frame structure ; 2>Container lock with secondary lock mechanism ; 3>High tensile steel and bolted type king pin plate ; 4>Double brake chambers makes a performance braking effects.
Product Name: Catheter Sheath Sets for Radial access 2. Product brand: HEETY 3. General Use: This product is intended to percutaneously insert into a blood vessel during interventional operation, guiding angiographic catheter, guiding catheter, balloon catheter and other similar catheters into artery and vein. 4. Available Type: Type A/B/C/D 5. Product Code: for example QA060100A (QA-Type A; 06-6F; 0100-10cm; A-Straight catheter) 6. Available French: 4-11 French 7. Available Length of Catheter: 7/10/16/25cm 8. Standard Packing Details: 5pieces/inner box; 4 inner boxes/Carton; 9. GW: 2.5KG/Carton 10. Components Catheter, Dilator, guidewire, trocar needle, syringe, scalpel blade 11. MOQ: 100pcs 12. Supply Ability: 10.000pcs/month 13. Lead Time: for large quantity - 60days; small quantity - quick delivery 14. Port Of Departure Hangzhou, China /Ningbo, China/ Shanghai, China 15. Additional Service: Hydrophilic coating available 16. More details pls contact:
CIMC produces 4 axles tipper trailer is the ideal equipment to transport for carrying sand crush stone rock and salt material. CIMC 12 wheel tipper trailer are equipped with HYVA cylinder, which is more reliable and more safety, all key parts of dump trailer are from famous brands boty at home and aboard.We can supply 2 axles, 3 axles, 4 axles tipper semi trailer, which loading capacity from 40-ton 80 ton for customer specific requirements. Competitive Advantage- CIMC hydraulic tipping trailer 1.Frame body Q345B high strength structure steel, automatic submerged arc welding throughout beams, and other cross-section main stringers structure for optimum carrying effect. 2.Well-known brand axles, suspension systems, high performance, and reliable to use, to ensure the good performance of the vehicle. 3.Full braking and electrical systems at home and abroad in accordance with ISO standard, optional ABS system, braking, lighting is absolutely safe and reliable. 4.We supply tipper semi-trailers with multiple customization options. Specification- CIMC hydraulic tipping trailer Bran: CIMC hydraulic tipping trailer Model: U -model Axle: 4 axle,Fuwa axle Hydraulic system: HYVA cylinder Suspension: Mechanical suspension Kingpin: 50#, 90# Landing gear: Jost Braking system: WABCO Tire: 11.00R20, optional
TITAN Vehicle offers low bed semi trailer truck designed to carry 30 tons, 40 tons, 60 tons, 80 tons, 100 tons, 120 tons, 150tons. It's main cargo platform is low, which ensures the stability of transportation. TITAN Lowbed semi trailer are widely used, mainly for medium and long-distance freight transportation. The lowbed semi trailers are commonly used to transport heavy vehicles, rail vehicles, mining machinery, forestry machinery, agricultural machinery, and other heavy-duty cargo. Product link: https://www.titanvehicle.com/product/list/lowboy-low-bed-trailer-for-sale-1.html Specification: Loading capacity: 60-70 ton Overall dimension: 13000mm * 3000mm *3400mm Axles: 3 axles Suspension: Heavy duty mechanical spring suspension Tire: 12 units Kingpin: 90# Landing gear: JOST Brake system: WABCO Electrical system: 24V, LED lights
The HG60 high-strength steel semi-trailer we provide is a more durable material than ordinary steel. Its load-carrying capacity is 5 times that of Q345 steel. It not only ensures the safety during the transportation of goods, but also avoids unnecessary maintenance to extend the life of the product. The 3 axle low bed trailer for excavator is a particularly versatile and extensive low loader system and is suitable for the transport of: 1> Construction machineries ( excavation and bulldozer , wheel loader .etc ) 2> Forestry machines ( harvester , skidder , forwarder . etc ) 3> Farming machines ( tractors , combine harvesters . etc ) 4> Structural elements ( steel and concrete elements ) 5> Industrial parts ( transformers , crane-loaded goods .etc ) 6> Conveying and crushing systems ( demolition and recycling industry ) 7> Bulky goods , long materials and heavy loads Specification: Brand: CIMC 3 axle excavator low bed trailer Dimension(mm): 13000*3000*2950mm Loading capacity(T): 40-60T Axle: 3 axle,13T/16T, FUWA / BPW / CIMC/Other Brand Tire: 8.25R20/10.00R20/11.00R20/12.00R20 Suspension: Mechanical suspension or air suspension Kingpin: 90# Landing gear: JOST brand Brake system: WABCO Light:LED light Electrical System: 24-volt lighting system
CIMC 40T Semi trailer tipper description CIMC 40T Semi trailer tipper adopts high strength steel T700, offering all the durability of high-tensile-strength steel and unique structure design to maximize payload to increase your profitability. So, CIMC designs one of the strongest flatbed trailers on the road today. CIMC Tippers equipped with reliable hydraulic HYVA cylinder. We can customize the tipper trailers according to your special need, like U shape dump trailer, end dump semi trailer, side tipper, and container tippers. 1. Leaf spring and suspension: The leaf spring is widened and thickened, the shock absorption effect is good, the suspension is widened, and the center pin is wider, which makes the vehicle more stable during driving. 2. Self-weight: We can emphasize the weight of our trailers to our customers, weigh more weight and better carrying capacity; Specification of semi trailer tipper: Name: 40T Semi trailer tipper Tare weight: 40T Bottom plate thickness(mm): 5mm-8mm /Q235 steel or can be optional Lifting system: Full set of Hyva (FC214-5-07130) Hydraulic Lifting Cylinder Main Beams: Height:500mm, upper plate is 16mm,middle is 8mm(double+three plate),down plate is 18mm,material is Q345B steel Axle: 3 axles, 13T/16T, FUWA/BPW/ Brand Landing Gear: JOST (D200T)or China Brand 28Tons King Pin: 50#, 90# Suspension: Mechanical suspension or Air suspension Customized of hydraulic dump trailer: For different color shape U type / Square type / container flatbed dump capacity 30 ton - 100 ton Single action or Linkage landing leg Mechanical suspension or air suspension any type of container tipper trailer
TANKER SILO TRAILER V TYPE NONTIPPING SILO SEMI TRAILER W TYPE NONTIPPING SILO SEMI TRAILER TIPPING SILO SEMI TRAILER BULK FEED SILO SEMI TRAILER TIPPER TRAILER CHASSIS LIVESTOCK SPECIAL PRODUCTS
40 foot flat bed trailer manufacturers description CIMC Flatbed container semi trailer is another commonly used type of container and equipment in the transportation industry. CIMC container semi trailer feature durability in off-road conditions, they are cross-functional for the carriage of commercial and industrial cargo up to 60 tons on roads of any category. CIMC 3 axles flatbed container semi trailer for carrying 40ft container, 20ft container and bulk cargo. the 40ft semi flatbed trailer can carry loads 40 ton machines and cargos. The 3 axles 40ft flatbed truck trailer also called tri-axle semi flatbed trailer. Specification---3 axle flatbed trailers for sale Overall L*W*H: 12,500Ã??2,500Ã??1,530 mm Payload: 60 tons Axles: 13 tons / 14 tons / 15 tons /16tons / 20 tons ( Fuwa/BPW /CIMC or other Chinese famous brand ) Tire: 12.00R20 / 11.00R20 / 12R22.5 / 385/65R22.5, optional Landing gear: JOST Kingpin: 50(2inch)#or 90(3.5inch)# bolted type Suspension Mechanical: / airbag / bogie suspension Brake system: WABCO brake system with dual brake chambers and emergency brake valve Container lock: 12 pcs Accessories: Tool box , spare tire carrier Advantages: 1>We adopt premium steel material, advanced technology and strict production to our flatbed trailer. 2>The floor is covered with corrugated sheet metal 3>Good brake effects. Axles are equipped with WABCO emergency brake valve also dual-brake chambers also widen brake pads. 4>The flatbed container semi trailer painted by advanced painting system, the painting effect can meet Swedish Sa2.5 class marine anti-corrosion standards.