Seamless ss pipes (300 series) 1. Grade:201.304 2. Thickness: 1.0mm-6.0mm 3. ... OD: 6.0mm-610mm 4. Standard: JIS, AISI, GB Seamless ss pipes (300 series ... )Our main products are stainless steel sheet and plates,stainless steel pipe and tubes,stainless steel coil and strips.201/304 ... GB, JIS GRADE 201,202,304,304L,316,316L,309s,310s 201,202,304,304L,316,316L,309s,310s ...