... 127mm 2 Wall thickness: 0.4mm - 2.5mm stainless steel u tube/pipe description: 1) Standard: JIS, AISI, ASTM, DIN2) Outside ... to 127mm 3) Wall thickness: 0.4mm - 2.5mm 4) Material: 201,202,301,304,304L,321,316,316L,4305) Surface ... :every tube is sleeved in plastic bag individually stainless steel u tube/pipe