1.304 stainless steel pipe 2.O.D.: ... oil, struction 5.Cert.: ISO -------------------------------------------1.304 stainless steel pipe2.O.D.:6mm~2220mm3.W.T.:0 ... DIN1629, DIN17175, Russian standard, Franch stan.)2. stainless steel pipe (304, 316, 316L, 304L, 321, 410, 444, 430)3 ... Epoxy powder)5. welded steel pipe (A53, API 5L, BS1387, EN10025) 1Product304 stainless steel pipe2StandardU.S.A.ASTM A312 ...