... thickness: 0.4mm to 2.5mm 3.Material: 201,304,316,ect 304 stainless steel welded pipes description: 1) Standard: JIS, AISI, ASTM, DIN2) Outside diameter ... thickness: 0.4mm – 2.5mm 4) Material: 201,202,301,304,304L,321,316,316L,4305) Surface: mirror polish,satin finish6 ... .Remarks: We can produce other mold as the customers’ requirement 304 stainless steel welded pipes