... . 4,API 5CT-1043, API 5L-0699 Linzhou Fengbao Pipe Co.,Ltd. as a seamless pipe manufacturer in the worldwide marketplace specializes ... quality. ) Non-destructive testing equipment is well equipped such as multi-inspection machine, eddy current inspection, ultrasonic flaw detection and also ... -Layer Polypropylene coated seamless steel pipe manufacturer Linzhou Fengbao Pipe Co.,Ltd.