... , X65, X42, L45StandardGB/T9711.1Length5m-12mUsageline pipe, casing and tubing, fluid pipe, water delivery, heating pipe, power pipe ... impact test,metallographic examinationFinal product testhydraulic test,on-line and off- line ultrasonic test, tensile test,yeild strength ... impact,flattening test chemcial analysis,metallographic examinationPackage1.naked;2.both ends with a plastic cap, then put the pipe ...