He bei qiancheng steel-pipe Co.,LTD -

He bei qiancheng steel-pipe Co.,LTD

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astm a106 grb seamless steel pipe
Specification: 4"-12" STD-SCH80
Detail: &©|160;&©|160;Our co***ny is equipped with sophisticated manufacturing and testing equipments,and a complete testing system has been established which includes advanced testing equipments, such as X-ray ***ector, ultrasonic wave...


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