... Quality and Price The materials of our stainless steel pipes are SS200series,SS304,SS304L,SS316,SS316L, ... Stainless Steel Pipe 1)Grade: 304, 304L, 316, 316L, 321 2)Standards: GB,ASTM,JIS,BS,DIN,Stainless Steel PipeFeatures ... ) Certificate: ISO, TSG, OIISAS9) The stianless steel pipe 304 is applicable to structure building, gas ... food industry,light industry,machinery stainless steel welded pipe tube