... ,CE,BV ANSI B18.21,ASME B16.21,DIN127 ,JIS Stainless steel corrugate gasketType: Spiral wound gasket, oval RTJ, Octagonal RTJ, Lens ... )Spiral wound sealing gasket is devided into A,B,C,D four styles 2)Material:tinplate/304/316+graphite 3)Used ... : 3mm~36mm Standard: JIS B 1251 Surface processing, material (special steel, stainless steel, copper and so on) or other specifications can be designed ...