Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
2018-11-07
Hejian Deris Petroleum Drilling Equipment Co., Ltd R&D and Design IADC 737 and IADC 837 Tricone Bit for drilling extremely hard rock to meet customers requirement . If you also drilling extremely hard formation please contact with us .
Address : Junziguan Industry Park NO.88, Hejian City, Hebei Province, China
Tel: +86 (0)317 5586567QQ : 824942002
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.