... ,API 5CT-1043, API 5L-0699 Linzhou Fengbao Pipe Co.,Ltd. as a seamless pipe manufacturer in the worldwide marketplace specializes ... machine, eddy current inspection, ultrasonic flaw detection and also equipment for impact test, tensile test, and metallographic analysis test. ... 5L Spec Gr.B seamless steel pipeApplication pipeline pipe, gas delivery pipe, fluid pipeStandard API 5L/ASTM A106/A53 ...