Standard: API 5L, API 5L PSL1, API 5L PSL2, CDP-S-NGP-PL-006-2014-03,CDP-S-NGP-PL-007-2014-03,ASTM A252, ASTM A500, GOST 20295-85, GOST 10704-91, GB/T9711,etc.
Material: Gr.B, X42,X46,X52,X56,X60, X65,X70,X80,S335, S355JR,S355JOH,ST52,20#,10#,etc.
Surface: Bare, Coating, Anti-corrosion, 3PE, PE/PP/EP/FBE. etc
Application:
Gas transportation ( oil, natrual gas)
Fluid ( water supply and drainage)
Structure (piling, bridge Wharf, road, construction structure, ect)