... a106 b1) Cold drawn seamless steel tube/pipe 2) Certificate: ISO9001: 2000, PED(Pressure Equipment Directive), API 5L, API 5CT, TS16949, ... 8/ST45.8), DIN2391(ST35/ST45/ST52) API - LINE PIPE(B/X42/X46/X52/X60, PE/BE), TUBING(J55/N80 ... Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test, No-destructive Test ...