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Yin Wencai
QQ:1140598546
msn:bjomzczb@hotmail.com
86-0317-3213201
86-13833748346
0317-3213202
bjomzczb@126.com
Yang Town, Shunyi District, Beijing, China
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Beijing Ouman Petroleum and Geological Drilling Equipments Co., Ltd. (former Northern China Petroleum Quanxing Super-hard Material Drilling Bit Factory) has been growing to the largest professional repair center for drilling bits in China. The product scopes of our company cover followings: tri-cone bits for oil and geological industries, PDC drilling bits, flat bottom mill shoes, concave bottom mill shoes, ball mill shoes, high-efficiency mill shoes, drilling tools such as rings, elevators and B-shape clamps, various kinds of fishing tools, workover tools as well as oil and geological supporting drilling equipments.
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