Compensator, Metal Bellows, Expansion Joint manufacturer / supplier in China, offering 1" DN25 Class300 Stainless Steel 1.4301/1.4307 Socket Welding Flange Sw ANSI B16.5, 10" DN250 A105 Forged Weld Neck Flange, Carbon Steel Reducer ASME B16.9 Sch 30 and so on.