... ,API 5CT-1043, API 5L-0699 Linzhou Fengbao Pipe Co.,Ltd. as a seamless pipe manufacturer in the worldwide marketplace ... machine, eddy current inspection, ultrasonic flaw detection and also equipment for impact test, tensile test, and metallographic analysis test. ... B seamless steel pipeApplication pipeline pipe, gas delivery pipe, fluid pipeStandard API 5L/ASTM A106/A53 GR.BMaterial20#,Q345, ...