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Beijing Zhongyueshixing
these pipes and tubes used in petroleum, natural gas, hydropower, gas-steam conduit falmmable fluid transferfing pipe and construction structure.
Telephone:86-10-869171099Address:haidian, beijing, beijing, China
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these pipes and tubes used in petroleum, natural gas, hydropower, gas-steam conduit falmmable fluid transferfing pipe and construction structure.
Telephone:86-10-869171099Address:haidian, beijing, beijing, China