China manufacture of steel pipe, pipe fitting&flanges; Featured products are clad pipe, clad pipe fittings&clad flanges.
Longtaidi is the designated and qualified supplier of pipe fittings for domestic large energy groups, such as CNPC CNOOC,SINOPEC,SINOCHEM,CHINA COAL CHINALCO. Long-term tech cooperation with domestic research institutes has established and will promote our research and development on new products and advanced technology continuously. Now Longtaidi is the leading level professional industry home and broad.
Our products are widely used in different fields including petroleum, natural gas, chemical industry, power generation ocean projects, shipbuilding, medicine, paper making and so on; Our products are exported to America, Korea, Germany, Italy,Pakistan, Bangladesh, Brazil, Algeria, Kazakhstan, Burma, Turkmenistan, Vietnam, the Middle East, Africa and other countries and regions and have won great reputation from customers.

Our main products are bimetal clad pipes, bimetal clad pipe fittings(elbows, tees, reducers,forged fittings) and bimetal clad flanges; Steel pipes, pipe fittings(elbows, tees, reducers,forged fittings) and flanges.
We especially focus on production of high pressure wall sickness pipe fittings, bimetal clad pipe fittings, anti-sulfer and anti-hydrogen pipe fittings, X-steel large diameter pipe fittings, gas collecting pipe fittings and other products.
We believe in quality is life. We have our own chemical and physical test center. We have more than 50 sets of testing facilities. We have got the license of pressure pipe components manufacture, ISO9001 quality management system and ISO140011 environment management system, OHSAS18001 occupational health management system, API, ASME-U/PP, CCS, LR, BV, ABS etc.. Over years accumulation, rich experience in production technology has hold and comprehensive strength has been continuously growing. Now we have advanced production equipment, including one lined pipe production line with capacity of 20,000 tons per year, more than 40 sets of pipe and fitting weld overlay machines, a set of 6000Thydraulic pressing machine, 2500T hydraulic pressing machines 1 set;We have DN1500, DN1400,DN1000, DN700 and DN350 diameter of intermediate frequency hot induction equipment; 4 sets of large natural gas heating furnace; 380 sets of other welding equipment, machine, surface treatment equipment etc..

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