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LT overshot is one of the fishing tools which is fishing the pipes externally. It can catch drill collar, drill pipe, tubing, subs and other pipes. Because of the seals, the fluid can circulate with the high pump pressure after catching the fish. The top of the fish will be milled by under mill shoe.

The releasing and circulating overshot can also work with jars to catch the stuck fishes. If the catched fish canâ??t be release from stucking ,we could release the overshot and lifting the drill string.
Overshot consists of three outside parts: top sub, bowl, and standard guide. The basic overshot may be dressed with either of two sets of internal parts, if the fish diameter is near the maximum catch of the overshot, a spiral grapple, spiral grapple control, and type â??Aâ?? packer are used. If the fish diameter is considerably below maximum catch size (�½â?? or more) a basket grapple and a mill control packer are used.

Hydraulic Mechanical Drilling Jar is integrate hydraulic principle with mechanical principle and applies to all kinds of drilling operations and be used through combining with drilling tools. This jar is equipped with a mechanical safety latch and mechanical latch for jarring downwards.

When the downhole tools get struck, the hydraulic mechanical drilling jar can generate upward jarring or downward jarring through lifting and landing drilling strings, and release block and stuck by several times jarring to recover normal drilling operation promptly. Avoiding resistance and stuck which may cause further accident and caused greater economic loss. If releasing force is failed, it can dynamically adjust at any time on sites.

Hydraulic jar is one of the drilling jars types used in drilling operations to free stuck pipe problem.
Orchid Energy hydraulic drilling jar will allow the operator to apply variable impact in both the up and down directions. It can protect the drill string effectively and improve the using life. The hydraulic stored energy mechanism has the advantage of reliable property and good stability. The scope of time delay interval can be 30s 240s; the scope of service temperature can be -40 180. It can adopt the new special material for higher property and safety. It can normally used for drilling, coring, work over and fishing etc.

Clear Float Glass Suppliers in China
Clear Float glass is produced by high-quality sand, natural ores and chemical materials by mixing them and melting them at high temperature; The molten glass flow into tin bath where the float glass is spread, polished and formed on the molten tin.
Clear Float Glass
Basic glass, versatile and suitable for different needs
Clear float glass is the foundation of every magnificent glass project. It can be processed in every way imaginable and is often used as the base glass for an entire range of glass products, including coatings, mirrors, back-painted glass, acid-etched glass, and more.

Benefits
Clear
Float glass has high light transmittance, providing a clear, undistorted view. Due to its crystal clarity, float glass has the unparalleled advantage of connecting you to the nature around you while protecting us from the elements. The natural light it allows into the building helps improve the visual comfort of the building's occupants while reducing the need for artificial lighting.
Easy to process
During the float glass manufacturing process, raw materials are melted to form a hot glass ribbon, which is then cooled in a controlled manner to introduce a uniform stress distribution in the annealed glass. An optimal annealing process helps ensure that float glass can be cut easily during further processing.

High Privacy PDLC Switchable Smart Glass Pane
PDLC Switchable Smart Glass is a type of laminated glass via wiring PDLC film.

PDLC Smart Glass
PDLC Smart Glass is a type of laminated glass via wiring PDLC film. When electricity is applied to the film, the liquid crystals align and the glass becomes clear; when the power is turned off, the liquid crystals return to their normal scattered positions rendering the glass an opaque translucent. It switches your glass from clear to frost with smart glass technology so it is named switchable glass, smart glass panel, laminated smart PDLC glass.

PDLC Switchable Smart Glass have been widely used in homes, conference rooms, office partition, hospitals, schools, military, hotels and so on.

PDLC (Polymer Dispersed Liquid Crystal) smart glass, also known as switchable glass or privacy glass, is a versatile glazing technology that offers a range of features and benefits.

Key features of PDLC smart glass
Privacy Control: PDLC smart glass can switch between opaque and transparent states with the flick of a switch or a remote control. This feature provides instant privacy for spaces like bathrooms, meeting rooms, or bedrooms when needed, and transparency when desired.

Light Control: It allows you to control the amount of natural light entering a space. When the glass is in the opaque state, it can block a significant amount of light, providing shading and reducing glare.

Energy Efficiency: PDLC smart glass can enhance energy efficiency by reducing the need for curtains or blinds to control light and privacy. This can help reduce heating and cooling costs in buildings.

UV Protection: When in the transparent state, PDLC smart glass can block a portion of harmful UV rays, protecting interior furnishings, artwork, and occupants from UV-related damage and health risks.

Sound Insulation: It offers some level of sound insulation, which can help create quieter and more comfortable indoor environments by reducing external noise.

Aesthetic Versatility: PDLC smart glass can be customized with various tints, colors, and patterns to match the design aesthetics of a space. This makes it suitable for both residential and commercial applications.

Security: In the opaque state, PDLC smart glass acts as a security feature by preventing visual access into a space, enhancing the security and privacy of the area.

Ease of Installation: PDLC smart glass can be retrofit into existing window openings or incorporated into new construction projects, making it a versatile choice for both renovations and new builds.

Remote Control and Automation: The glass can be controlled remotely using a switch, remote control, smartphone app, or integrated into building automation systems for convenient and automated operation.

19mm Tempered Heat Strengthened Glass
Heat-strengthened (HS) glass is not a safety glass, it is heat treated glass, but when it is broken, the breakage pattern prevents the glass from falling and injuring people.

Heat Strengthened Glass
Heat-strengthened glass is a type of glass that has undergone a specific heat treatment process to enhance its strength and durability, making it a valuable material in various architectural and structural applications. Heat-strengthened glass doesnâ??t require the strength of fully tempered glass and is intended fir applications that that do not specifically require a safety glass product.

Characteristics of Heat-Strengthened Glass
Strength: Heat-strengthened glass is stronger than regular annealed glass but not as strong as fully tempered glass. It is designed to resist higher levels of wind pressure and thermal stress compared to standard glass.

Safety: When heat-strengthened glass breaks, it typically forms larger, less sharp shards than annealed glass. While it does not provide the same level of safety as tempered glass, it reduces the risk of serious injury due to glass shards.

Resistance to Thermal Stress: Heat-strengthened glass has improved resistance to thermal stress, making it suitable for applications where temperature fluctuations occur, such as in facades exposed to direct sunlight.

Optical Clarity: It maintains good optical clarity, making it suitable for applications where a clear view is essential, such as windows and architectural glazing.

Applications of Heat-Strengthened Glass
Curtain Walls: Heat-strengthened glass is commonly used in curtain wall systems for commercial buildings. Its ability to withstand wind loads and temperature changes makes it a reliable choice for large glass facades.

Windows: It is used in windows, especially those that are larger in size, to improve their structural integrity and resistance to thermal stress.

Glass Doors: Heat-strengthened glass can be used in entrance doors and interior glass doors to enhance their strength while maintaining visibility.

Skylights: Skylights and overhead glazing often employ heat-strengthened glass to withstand weather conditions and provide natural light to interior spaces.

Partitions: In office spaces and interior design, heat-strengthened glass can be used for glass partitions, creating visually open and well-lit areas.

Balcony Railings: It is used in balcony railings, providing safety and structural support while allowing for unobstructed views.

Storefronts: Commercial storefronts may incorporate heat-strengthened glass to ensure both aesthetics and security.

Display Cases: Retail display cases and museum showcases often use heat-strengthened glass for improved safety and clarity.

Canopies: Glass canopies and shelters can benefit from the strength and durability of heat-strengthened glass

Toughened Glass
Size:2440*1830MM, Thickness:10MM
Delivery Time: 10-40 days(the exact time depends on destination country)
Departure Port: Shanghai, Ningbo-Zhoushan, Qingdao, Tianjin, Dalian, Xiamen, Guangzhou(or other ports based on customer requirements)

Float Glass
Size:3300*2140MM, thickness 2-10MM Delivery Time: 10-40 days (the exact time depends on destination country )
Departure Port: Shanghai, Ningbo-Zhoushan, Qingdao, Tianjin, Dalian, Xiamen, Guangzhou or other ports based on customer requirements

The spiral drill collars are made of 4145HMOD modified chromium-molybdenum alloy steel according to API Spec 7-1 . All threads can be phosphated,copperised or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and a special thread, the max diameter of spiral drill collar is 14 inch.
Out diamete: 3 7/8"~ 14"(inch)
Depth of cut: 4.0 ~ 11.9 (mm)
Length: 9150+150(mm)
Standard size�?� for�?� drill collar
Connection # OD ID L mm DF
mm Bending strength ratio
mm in mm In
NC23-31 79.4 3 1/8 31.8 1 1/4 9150 76.2 2.57:1
NC26-35 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.42:1
NC31-41 104.8 4 1/8 50.8 2 9150 or 9450 100.4 2.43:1
NC35-47 120.7 4 3/4 50.8 2 9150 or 9450 114.7 2.58:1
NC38-50 127.0 5 57.2 2 1/4 9150 or 9450 121.0 2.38:1
NC44-60 152.4 6 57.2 2 1/4 9150 or 9450 144.5 2.49:1
NC44-60 152.4 6 71.4 2 13/16 9150 or 9450 144.5 2.84:1
NC44-62 158.8 6 1/4 57.2 2 1/4 9150 or 9450 149.2 2.91:1
NC46-62 158.8 6 1/4 71.4 2 13/16 9150 or 9450 150.0 2.63:1
NC46-65 165.1 6 1/2 57.2 2 1/4 9150 or 9450 154.8 2.76:1
NC46-65 165.1 6 1/2 71.4 2 13/16 9150 or 9450 154.8 3.05:1
NC46-47 171.4 6 3/4 57.2 2 1/4 9150 or 9450 159.5 3.18:1
NC50-67 171.4 6 3/4 71.4 2 13/16 9150 or 9450 159.5 2.37:1
NC50-70 177.8 7 57.2 2 1/4 9150 or 9450 164.7 2.54:1
NC50-70 177.8 7 71.4 2 13/16 9150 or 9450 164.7 2.73:1
NC50-72 184.2 7 1/4 71.4 2 13/16 9150 or 9450 169.5 3.12:1
NC56-77 196.8 7 3/4 71.4 2 13/16 9150 or 9450 185.3 2.70:1
NC56-80 203.2 8 71.4 2 13/16 9150 or 9450 190.1 3.02:1
6 5/8 REG 209.6 8 1/4 71.4 2 13/16 9150 or 9450 195.7 2.93:1
NC61-90 228.6 9 71.4 2 13/16 9150 or 9450 212.7 3.17:1
7 5/8 REG 241.3 9 1/2 76.2 3 9150 or 9450 223.8 2.81:1
NC70-97 247.6 9 3/4 76.2 3 9150 or 9450 232.6 2.57:1
NC70-100 254.0 10 76.2 3 9150 or 9450 237.3 2.81:1
8 5/8REG 279.4 11 76.2 3 9150 or 9450 266.7 2.84:1
8 5/8REG 355.6 14 76.2 3 9150 or 9450 266.7 2.84:1

Curved Glass Panels is safety glass. Curved toughened glass is strong and shock resistance as annealed glass is heated to 700, and rapidly cooled to induce glass strength. Like: curved tempered glass, curved glass table, small radius curved glass, coffee tables curved glass, skylight curved glass, double curved glass panels for showcases. This type of bent glass is mostly used. Where a high degree of safety is required, such as in windows, curtain walls, balustrades or skylights, it becomes the most practical type of curved tempered glass.

Here are some key features about curved glass panels:
Aesthetic Appeal: Curved glass panels are visually striking and offer a unique design element. The smooth and flowing curves create a sense of fluidity and grace, adding a touch of sophistication to any structure. They can be used in various architectural styles, from modern and contemporary to classical and avant-garde.

Jumbo Laminated Glass
Very Large Over Size Laminated Glass from the name we can know that is very big size laminated glass. Such large laminated glass also require big glass thickness and itâ??s better to choose SGP as the interlayer. So it is also acoustic glass Saflex DG41. Such large size laminated glass can be seen in the big building curtain wall, glass fence, railing and so on.

Advantages:
Safety and Security: Jumbo laminated glass provides enhanced safety and security features. It consists of multiple layers of glass bonded together with an interlayer, usually made of polyvinyl butyral (PVB). This construction makes it difficult to break through, reducing the risk of injury from shattered glass and providing protection against forced entry or vandalism.

SGCC glass, also known as Safety Glazing Certification Council glass, refers to glass that has been tested and certified by the Safety Glazing Certification Council.

Some advantages of SGCC glass
Safety: SGCC glass is designed to meet specific safety standards and regulations. It undergoes rigorous testing to ensure its ability to resist breakage and minimize the risk of injury. In the event of breakage, SGCC glass is designed to fragment into small, relatively harmless pieces, reducing the chance of severe injuries from sharp shards.

Curved glass wall through the pretreatment processing(cut customized size), then heated to a softening temperature, and then under the weight or outside force, through specific mold, made of glass in conformity with the mould, then through annealing treatment produce hot bending, such as low iron insulated curved glass, extra clear laminated curved glass ect. Clear curved glass, double curved glass, hot curved glass, compound curved glass, bent glass, ect facade glass is the most common.

Detailed Product Description
drill collar
1)O.D: 2-3/8"-20"
2.Grade:J55 K55 N80 P110 ect
3.Thread :NU EU STC LTC BTC
4.Standard: API 5CT...
drill collar
Materials of the Non-magnetic drill collars are from chrome manganese, low carbon obtained by combining a proprietary chemical analysis and a rotary hammer process. The material is resistant to stress corrosion cracking, with high machine ability and no tendency to galling.
Magnetic permeability (when MPS=1105/4Nm) relative max �¼r:1.010.
Magnetic field gradient (hot spots) max: B 0.05micro tesla/100mm.
Place of Origin Beijing, China (Mainland)
Brand Name MTWK
Model Number various
Type Drill Collar
Machine Type Drilling Tool
Certification API
Material Chromium
Processing Type Forging
Use Well Drilling
Packaging Details standard export packing or according to seaworthy packing
Delivery Time 30 days
Supply Ability 100 Piece/Pieces per Month
Details:
Category Drilling Tool
Certifications
FOB Price
Min Order 1 Piece/Pieces as your order
Lead Time
Port tianjin
Terms L/C,T/T

The pipe body is in conformance in API 5DP with serious inspection in plant.
Tool Joints are made of AISI4137 premium alloy steel fully Q and T with IPSEN furnace.
All tool joints should be inspected at full length by fluorescence magnetic particle and ultrasonic method.
SIZE 5"
GRADE G105
LENGTH R2
PACKING STEEL PACKING IN BUNDLE
Details:
Category Drilling Tool
Certifications API5DP
FOB Price USD2322/TON
Min Order AS REQUEST
Lead Time STOCK
Port TIANJIN
Terms T/T
Capacity 500 PIECES PER MONTH

Kelly is the drive part of whole drill stem, it has two types, square kelly and hexagonal kelly and all of them are manufactured comfort to API Spec7-1 and SY/T6509-2000 criterion.
Our� Square& Hexagonal kelly are made from AISI 4145H modified alloy bars that are quenched and tempered full length. After such heat treatment, its brinell hardness can reach 285-341. Kelly end, drive cross-section and joint are all processed and tested comform to API criterion.

The Non-magnetic heavy weight dill pipe are made of low carbon stainless steel and meet the requirements of API7-1
Size OD ID connection Body
�  mm in mm in Style OD Bevel diameter pin and box Upset
mm in Mm
center area Mm
End area
WJZ66-6 5/8FH-I 168.3 6 5/8 114.3 4 1/2 6 5/8FH 209.6 8 1/4 195.70 184.2 176.21
WJZ55-5 1/2FH-I 139.7 5 1/2 92.1 3 5/8 5 1/2FH 177.8 7 170.7 152.4 144.5
WJZ50-NC50-I 127.0 5 76.2 3 NC50 168.3 6 5/8 154.0 139.7 130.2
WJZ45-NC46-I 114.3 4 1/2 71.4 2 13/16 NC46 158.8 6 1/4 145.3 127.0 117.5
WJZ35-NC38-I 88.9 3 1/2 52.39 2 1/16 NC38 120.7 4 3/4 116.3 101.6 92.1
WJZ29-NC31-I 73.03 2 7/8 50.8 2 NC31 104.8 4 1/8 100.4 84.1

Integral heavy weight drill pipes are manufactured from AISI 4142H-4145H modified drill collar material , thick-walled pipe called integral heavy weight drill pipe was developed to provid a gradual transition from the heavy weight drill collars to the relatively light weight drill pipe. This intermediate weight pipe has a wall thickness of approximately, and it helps prevent stress concentration at the� top of the drill collars. It also allows you to drill at higher pms, reducing torque and differential pressure sticking. It is intended primarily for directional drilling. Because it bends easily, it simplifies directional control and�  minimizes connection fatigue problems common to high angle or horizontal drilling. The reduced number of pipe failures and increased drill stem service also make it appropriate for some straight hole applications.
Specification OD ID connection Body Weight
mm in mm in Style OD Inner and outer thread Upset
mm in Mmd
center area Mm
� End area
Type I�  (Length is 9300mm for one piece)
ZH-J66-6 5/8FH-I 168.3 6 5/8 114.3 4 1/2 6 5/8FH 209.6 8 1/4 195.70 184.2 176.21 965KG
ZH-J55-5 1/2FH-I 139.7 5 1/2 92.1 3 5/8 5 1/2FH 177.8 7 170.7 152.4 144.5 730KG
ZH-J50-NC50-I 127.0 5 76.2 3 NC50 168.3 6 5/8 154.0 139.7 130.2 700KG
ZH-J45-NC46-I 114.3 4 1/2 71.4 2 13/16 NC46 158.8 6 1/4 145.3 127.0 117.5 585KG
ZH-J35-NC38-I 88.9 3 1/2 52.39 2 1/16 NC38 120.7 4 3/4 116.3 101.6 92.1 370KG
ZH-J29-NC31-I 73.03 2 7/8 50.8 2 NC31 104.8 4 1/8 100.4 84.1 81.0 220KG
Type II�  (Length is 13500mm for one piece)
ZH-J50-NC50-II 127.0 5 76.2 3 NC50 168.3 6 5/8 154.0 139.7 130.2 945
ZH-J45-NC46-II 114.3 4 1/2 71.4 2 13/16 NC46 158.8 6 1/4 145.3 127.0 117.5 790

The six-party drill pipe is made from AISI4145HMOD alloy steel According to API Spec.7 -1. IT is formed by hot forged and fully heat-treated by intermediate frequency induction heat treatment or 20m horizontal optical resistance furnace to threads are phosphated, copperrized or cold worked.
  Standard size of hexagonal kelly;Each can reach a total length of 27 meters.
Kelly size Length drive section Length overall Length drive section
LD
Standard LD
Optional L
standard L
optional DFL
Across flate DC
Across cornere DCC
Across cornere Rc
Radlue Rcc
Radlue Wall thickness eccentric bore

76.2 3 11280 12190 76.2 85.7 85.73 6.4 42.9 12.1
88.9 3 1/2 11280   12190 88.9 100.8 100.0 6.4 50.0 13.3
108.0 4 1/4 11280 15540 12190 16460 108.0 122.2 121.4 9.9 60.7 15.9  
133.4 5 1/4 11280 15540 12190 16460 133.4 151.6 149.86 9.9 75.0 15.9  
133.4 5 1/4 11280 15540 12190 16460 133.4 175.4 171.45 15.9 85.7 15.88
152.4 6 11280 15540 12190 16460 152.4 173.0 173.02 9.5 86.5 15.9  
152.4 6 11280 15540 12190 16460 152.4 173.0 173.02 9.5 86.5 15.9  


Upper box connection
Thread size and style LF O.D. Bevel diameter
Standard optional DU
standard DU
optional LU DF
Standard DF
optional
6 5/8 REG 4 1/2 REG 196.9 146.1 406.4 186.1 134.5
6 5/8 REG 4 1/2 REG 196.9 146.1 406.4 186.1 134.5
6 5/8 REG 4 1/2 REG 196.9 146.1 406.4 186.1 134.5
6 5/8 REG 196.9   406.4 186.1  

Lower pin connection I.D.

Label O.D. LL DF
Bevel diameter

NC26 85.7 508 82.9 31.8  
NC31 104.8 508 100.4 44.5
NC38 120.7 508 116.3 57.2
NC46 158.8 508 145.3 71.4
NC50 161.9 508 154.0 71.4
5 1/2 FH 177.8 508 170.7 82.6
NC56 177.8 508 171.7 82.6

Doorwin Aluminium Low-E Glass Customized Design Australia Standard For Residential Use French Casement Windows.Test report available.