xuelian, Tianjin, Tianjin, China

We are China PDM DRILLING TOOLS&＃039;S MANUFACTURE LTD &＃039;s export arm and also theleading supplier who is specialized in marketing all sizes of OCTG. Business Field:drill pipes, in...

HUBEI QIANLONG MINING GROUP is a China based company located in Wuhan, Hubei, known for its first in class Drilling fluid additives,Heavy medium,Weight material,. Our mission is aimed towards serving ...

NO.43,West Diming Street,Mudanjiang City,Heilongjiang Province of China.

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