)high pressure alloy steel tube astm a210 a1 2) OD 19.05- ... drawn seamless steel tube/pipe 2) Certificate: ISO9001: 2000, PED(Pressure Equipment Directive), API 5L, API 5CT, TS16949, DNV, KR 3) Standard ... ) Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, new astm a210 high pressure alloy steel tube