1)high pressure alloy steel tube astm a210 a1 2) OD 19.05-508mm WT: 1-60mm 3) ASTM DIN JIS ... EN API Standard 4) SGS VOC BV CE KEY WORDS: high pressure alloy ... steel tube/pipe 2) Certificate: ISO9001: 2000, PED(Pressure Equipment Directive), API 5L, API 5CT, TS16949, DNV, ... : Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting. high pressure alloy steel tube astm a210 a1