W casings are made in DCDMA standards ,the most popular sizesand are AW, BW, NW, NWA, HW, and PW standards applied in geotechnial drilling.
Raw materials:
We choose the best steel tubes in the market to manufacture our rods and pipes. Instant check will be conducted after the raw material is delivered to our plant so that it canmake sure the compositions and specifications meet the inspection form the suppliers.
Heat treatment control:
Heat treatment will greatly make sure the material strength and the thread wear life of the rods and casings. We conduct either tru-wall or both ends heat treatment to the tube body.
Thread opening process:
Precision of threads will impact the use effects and serve time of drill rod and casings.
CNC latches and form cutter are used in thread opening process to minimize error .
Additional thread treatment:
Surface of the threads will be cleaned to remove burr adhered after threads are opened.
At last , the tread surface will be phosphated to improve surface conditions.
Casing and the core tube specification
Supplier: Pumps, diesel engine, construction machinery, electronic appliances, power machinery and equipment, lighting equipment, engines, and parts and components
Buyer: Industry chains
Supplier: Construction equipment (home improvement, electrical supply, pipes and fitting etc..), heavy machinery: mining equipment, excavator, drilling, and so on
paper and packaging, production line: kraft paper, plastic and paper box, aluminum foil, plastic wrap, boxes, paper cups, take a way box and so on..
renewable energy: solar panels, inverter, photovoltaic chemical and raw material: soda ash, titanium, pe, ppe
Services: Our company hangzhou xing ying technology co., ltd.(astrioglobal) also provides exporting, quality control, international logistics and consulting/negotiation.
Supplier: Waste & scrap for recycling, glass scrap, plastic scrap, tyre scrap, natural & agricultural products, coco peat, vermicompost, seeds, vessels & tanks, air receivers & air headers, anchor bolts & foundation bolts, scaffolding, ladders & gratings, stainless steel (ss) & mild steel (ms) heavy structures, heat exchangers, expansion bellows/joints, steel ladders & ladles, tundishes, limpet coils, packaging materials, stretch film, other packaging solutions, fasteners & construction equipment, nuts, bolts, & fasteners, other construction & infrastructure products
Buyer: Steel plate
Supplier: Drilling equipment, instrumentation, valves, electrical, pumps, rotating machinery, process equipment such heat exchangers, pipe & tubing, pipe fabrication
Supplier: Rice bran, de-oiled rice bran, DORB, rice bran oils, crude oils, sesame oil, mustard oils, mobile phone chargers, rice products, chillies, dals, malt extraction, cooking oil, used cooking oils, refinary oils, onions, milk powders, mobile phone accessories
Buyer: Brick making machines, security equipments, used cooking oils, mobile phone chargers, bio-diesel oils, glass ash dense, soybean oil
Supplier: Heavy mobile mining equipment, components, parts, and tires. certain energy products ie thermal coal
Buyer: Heavy mobile mining equipment, components, parts, and tires. certain energy products ie thermal coal
