supply pin drive roller kelly bushing

李晓游 所在地： 海淀区 　行业：商务服务 职位：业务助理

the pin drive roller kelly bushing provides the following advantages:

1. pulling out or feeding off string can be done while rotating;

2. because fo its integral construction , it can not fly out and hurts you,

3. the bushing is easily installed into the master bushing, maintaining good alignment

the contact between kelly and roller is rolling contact, so friction is lower, and weight on  bit is accurate. 

We are the first-class member in supply network of china national petroleum corporation (CNPC), the member in material resource market of china petrochemical corporation (SINOPEC) and the first-class supplier of china national offshore oil corp. (CNOOC). The company is engaged in design, research and manufacture of new products and it has strong technological capabilities and advanced production equipments. It has passed ISO9001-2000 certification and acquired API Spec7, Spec7-1, Spec7k official monogram certification. At present, we mainly produce oil drilling tools, and more than ten series products have been formed. There are several kinds of products have been used as substitute for imported products in the oilfield all over the domestic. at the same time, our products also exported to international market as India, Philippines, Qatar, Singapore, the UAE, Iran, Oman, Syria, Yemen, Sudan, Canada, USA, UK, Norway, Russia etc. it has earned good and wide market reputation.

We desire to extend cooperation with new and old consumers at home or abroad and all circles of society in products development, technological innovation and marketing, and other fields. And we hope to boost development of oil drilling tools in china and the world through our mutual and unremitting efforts.

发布时间：2008-6-8 18:56:52

已阅： 36次

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