Compensator, Metal Bellows, Expansion Joint manufacturer / supplier in China, offering 4" DN100 Carbon Steel Butt Weld ASME B16.9 Pipe End Cap, 28" DN700 Carbon Steel Seamless Butt Weld Seamless Cap End Cap, 1 1/2" DN40 Carbon Steel Seamless Butt Weld High Pressure Cap and so on.