三级三级三级日本99,国产精品自拍9_欧美日韩国产,欧美97视频在线观看,亚洲午夜影视久久久久久,美女鸡鸡干鸡鸡动漫,熟女乱aⅴ一区二区三区,日韩精品成人高清一区二区,久碰人妻人妻人妻人妻人掠,男人将坤坤插入二次元美女下体

Booth No.：E3550

According to the latest news from the organizing committee, Great Drill Bits make sure attend the 16^th China International Petroleum & Petrochemical Technology and Equipment Exhibition(cippe2016).

Cangzhou Great Drill Bits Co., Ltd was founded in 1998, and the company devotes itself to the development, design, production and sales of PDC drill bits, which is one of the largest companies for the manufacture of PDC drill bits. The modern plants and advanced facilities are full-equipped, and it has an annual production capacity of above 10,000 units. And Great can manufacture the PDC drill bit in various specifications of 3＂～26＂.

The product strictly follows a continuous and cyclical improvement process in fundamental research, production-manufacturing, follow-up service and product optimization. Great pursues perfect quality idea of No defect in quality and no complaints from customers, to control the system and assure the quality and to promote the quality with technological development.

As a first-class material supplier of Sinopec and CNPC as well as a qualified supplier of CNOOC, Great establishes strategic cooperation relations with various domestic big oil fields. The products are highly accepted by customers at home and abroad, and are sold in North America, South America, Eastern Europe, Africa, the Middle East, Asia, Australia and other companies and regions