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Heilongjiang Beifang Tools Factory

heilongjiang mudanjiang

[ Manufacturer ]Main business are Hard alloy and W-alloy products, Down hole button bits and drilling hammer, Oil chainses, Powder load.

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2011-11-30

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Laizhou Yuanye Science And Technology Co., Ltd.

shandong yantai

[ Manufacturer ]Main business are Drilling fluid additive, Chemicals collection additive, Petroleum auger miner.

Posted by

2011-11-30

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