Manufacturer

Cangzhou Hongyun Pipe Co.,Ltd.

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spiral steel pipe
Specification: 219-3600mm
Detail: Standards of spiral pipe are GB/T9711.1 9711.2 SY/T5037 5040 APTSPEC 5L.

seamless steel pipe
Specification: 16-426mm
Detail: Standards of seamless steel pipe are GB/T8162 8163 3087 5310 6479 9948 5312.


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