玩北京pk10的技巧

来源:玩北京pk10的技巧 日期:2018/10/23 0:14:13
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LED HEADLIGHT CREE SERIES

 




Great Drill Bits Co., Ltd. founded in 1998, speciallized in processing research of steel and diamond materials, is involved in the R&D, design, production and sales of petroleum equipment, up to now we have being the top material supplier of CNPC, SINOPEC, CNOOC. We have a 40,000 m² of production based in Hebei Hejian provincial development zone...

LED HEADLIGHT CSP SERIES

 



GREAT has more than 20 years’ experience in manufacturing and worldwide application in PDC bits, we offer the global client &operators matrix / steel body/coring/nature diamond bits with high technology and high quality.

Our excellent PDC design and manufacture teams will give you professional and efficiency drilling service any time .

ABOUT AULOLA

 

GREAT provide high quality tri-cone bit and professional drilling solutions to the global clients&and operators .
We own the excellent design and development teams and most advanced manufacturing line, we can offered you the steel/insert tricone bits with the latest technologies,making your drilling more efficiency and economic.

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