... : 304,304L,316,316L,321,310S,302,202 etc. Stainless Steel Seamless Pipe&Tube 1Standards GB/ASTM/JIS/DIN 2Steel Grade 304,304L ... .05-0.2mm7Surface finishannealed/cold pilgered/polished8Applicationspetrochemical industry, aerospace industry, fluid and gas transportation,machinery, construction&decoration, electronic & medical appliances etc ...