Standard: ASME: American Society of Mechanical Engineers, GB/T8162, GB/T8163, American Petroleum Institute API 5L, A106, A53, A335, A333, DIN1629, DIN2448, NF A49, GOST8731, JIS, G3454
End: Plain end, beveled end, thread, coupling, plastic cap in the both end, pipe clamp.
Surface: Oiled, black painted or varnish, galvanized, 3PE, FBE, or other epoxy coating.
Process: Hot-rolled, cold drawn, thermal expansion
Inspection: Hydrostatic testing, ultrasonic testing, eddy current testing, magnetic particle testing, impact testing, hardness testing, etc.
Application: Petroleum, chemical, electric power, water, construction, pipelines, etc