Zhongyuan pipeline Manufacturing Co., Ltd.
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Cangzhou Hebei China
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania
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Large diameter spiral steel pipe manufacturing company
20 'seamless steel pipe can be customized
Steel pipe and pipe fittings for petrochemical industry
Submerged arc welded pipe
Spiral Steel Pipe Sales Company
Company's main spiral steel pipe, straight seam steel pipe, gas steel pipe
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