Changfeng Group is in Cangzhou, Hebei Province, China. It is a large company specialized in high frequency straight seam welded pipe. The company has advanced steel tube process and check-out facility. It use WELDACG2600KW solid state high frequency welding machine produced by EFD. The on-line crack-detection examination uses AS-200 UT produced in Israeli Tel Aviv. The movable part uses the fine facility of Germany, and the hydraulic pressure check-out facility uses the overseas advanced automatic control system, the biggest test-pressure is 75Mpa. Its products apply to petroleum drive pipe, domestic and foreign oil gases, city fuel gas, pipe net work, chemical industry, electric power and blue gas transportation, and so on.

Product: ERW pipe

Standard?GB/T9711.1&＃8212;1997 ?API SPEC 5L?API SPEC 5CT

Products Specifications:

?219mm�mm-12mm
?340mm�mm-14mm

?245mm�mm-12mm
?377mm�mm-16mm

?273mm�mm-12mm
?406mm�mm-16mm

?325mm�mm-14mm
?426mm�mm-16mm