... :R11~R105 BX150~BX303 2)Standard:ASME 16.20 3)Material:alloy material 4)Price:the most ... competitive 5)Delivery:1 week features:ASME B16.20 Alloy Material Ring Joint Gasket1)size:from R11 ... to R1052)standard:ASME 16.20 B3)material:soft iron,carbon steel,stainless steel ... gasket,BX,RX)standardsHG20633-97,HG20612-97,ASME16.20,API6B,JB/T89-94material selectedsoft iron,carbon steel, ...