Welcome to the Shaanxi Dongzerui Technology Development Co., Ltd.
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Shaanxi Dongzerui Technology Development Co., Ltd.
Tel：+86 400-883-0117
Email：dzr_yxb@dongzerui.com
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Explosion proof digital intercom system
Drilling explosion-proof monitoring system
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System certification
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ATEX authentication
Patent certificate
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Oil drilling and production equipment installation
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Company honor
Certification of high-tech enter...
Shaanxi Province Excellent Quali...
Enterprises listed on the Scienc...
Certificate of Evaluation for th...
Donation certificate
