Compensator, Metal Bellows, Expansion Joint manufacturer / supplier in China, offering Non Welding Slip on Loose Lap Galvanized Ms Gi Back Ring Flange, Monolithic Insulating Joint 4 Inch DN100 Sch80 Class150 300 600 900, 4" DN100 Class150 Stainless Steel FF China Blind Flange Pn16 GOST 12836 12X18h10t and so on.