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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Qualification
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System certification
Certificate of Evaluation for the Integration of Industrialization and Industrialization Management System
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