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Drilling mud pump ac
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One-way valve
One-way valve

One-way valve

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Dezhou Huahai Petroleum Machinery Co., Ltd Phone:86-0534-2625088 Fax:86-0534-2627788 Contact person: Mr. Zhang Mobile phone:+8613905342326 +8618653409988 address：China·Shandong Province·Dezhou Economic and Technological Development Zone Website：www.dyhongda.net
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