... CE,BV ANSI B18.21,ASME B16.21,DIN127 ,JIS Stainless steel corrugate gasketType: Spiral wound gasket, oval RTJ, Octagonal RTJ ... styles 2)Material:tinplate/304/316+graphite 3)Used in pump,chemical,etc. 1. Specification: 2.5mm ~ 80mm availableStandard: DIN127B ... 36mm Standard: JIS B 1251 Surface processing, material (special steel, stainless steel, copper and so on) or other specifications can be designed ...