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                   13931638572
                   18931651559
QQ: 345606721

Lang Fang King-drilling Technology Limited Company, which is located in Tsinghua science & technology park, Langfang economic and technical development zone, Hebei province, 37km to Beijing, and 3km to jing-jin-tang high way.
For many years, our company contributes all heart to the national and intern ...... >>> 『MORE』

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