... Cold drawn seamless steel tube/pipe 2) Certificate: ISO9001: 2000, PED(Pressure Equipment Directive), API 5L, API 5CT, TS16949, DNV, KR ... (ST35.8/ST45.8), DIN2391(ST35/ST45/ST52) API - LINE PIPE(B/X42/X46/X52/X60, PE/BE), TUBING(J55 ... , Hydrostatic Test. Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting. seamless round pipe )api 5l carbon steel pipe api 5l carbon steel ...