Steel Pipes, Pipes Fittings, Socket Fittings manufacturer / supplier in China, offering Nickel Collar Flange 2" Sch Xs 80s Cl600 Rj ASME B16.5 B564 Gr. N08811 Incoloy 800ht, Seamless GOST 8731-74 Steel 20# Carbon Steel Pipe, High-Quality ASME B16.48 Class 2500 F316ti Paddle Spacer Flange and so on.