Tiêu chuẩn AWWA CLASS B, D, E, & F ASTM A-36, ASTM A-283 A105, SS400,
Tiêu chuẩn ASME B16.47 SER.B A105, A350, SS400, SF440, S235, F304, F304L, F316, F316L…
Standards ASTM A-197, BS EN 1562 & 1461.Threads ISO 7-1, Working Pressure 150 psi…