... Quality and Price The materials of our stainless steel pipes are SS200series,SS304,SS304L,SS316,SS316L,SS321 ... mm.Detailed Product Description...Good Quality and Low Price Stainless Steel Pipe 1)Grade: 304, 304L, 316, 316L, ... 321 2)Standards: GB,ASTM,JIS,BS,DIN,Stainless Steel PipeFeatures:1) Outer diameter: from 6mm to 530mm2) ... ,food industry,light industry,machinery stainless steel welded pipe tube