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October 18, 2018
Hejian Deris Petroleum Drilling Equipment Co., Ltd
WhatsApp/ WeChat : +8615128708428 / 15028618918
Skype: jenny19871026shen
www.welldrillingbit.com
Contact : Jenny / Brean
On August 22nd, the cone-PDC composite drill bit was mass produced in the gemstone machinery Chengdu Gems Company. At the end of July, the new cone-PDC compound drill bit developed by Gems Machinery Chengdu Gems Company completed the test in the Ma 002-H1 development well constructed in Sichuan Maliuchang...
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