Compensator, Metal Bellows, Expansion Joint manufacturer / supplier in China, offering 4" DN100 Class150 Stainless Steel FF China Blind Flange Pn16 GOST 12836 12X18h10t, 3/4" DN20 Carbon Steel ANSI B16.5 ASTM A105 Slip on Flange Soh, 1 1/4" DN32 Class150 FF Stainless Steel Blank Flange Factory Blind and so on.