Utility Model Patent Certificate [No. 3349715]

Utility Model Patent Certificate [No. 3349715]

Zhongqiu - A Compact Ball Valve - Utility Model Patent Certificate

Zhongqiu - A Compact Ball Valve - Utility Model Patent Certificate

Zhongqiu - A debugging device for electric actuators used in valves - Utility model patent certificate

Zhongqiu - A debugging device for electric actuators used in valves - Utility model patent certificate

Exterior Design Patent Certificate

Exterior Design Patent Certificate

Exterior Design Patent Certificate

Exterior Design Patent Certificate

Appearance Design Patent Certificate [No. 5243967]

Appearance Design Patent Certificate [No. 5243967]

Exterior Design Patent Certificate [No. 2711798]

Exterior Design Patent Certificate [No. 2711798]

Zhongqiu - Automatic Buried Arc Welding Equipment - Invention Patent Certificate

Zhongqiu - Automatic Buried Arc Welding Equipment - Invention Patent Certificate

Zhongqiu - A steel ball valve - Invention patent certificate

Zhongqiu - A steel ball valve - Invention patent certificate

Zhejiang Province Science and Technology-based Small and Medium-sized Enterprise Certificate

Zhejiang Province Science and Technology-based Small and Medium-sized Enterprise Certificate

Scientific and Technological Achievement Appraisal Report (Anti-static Safety Ball Valve, High-pressure Hollow Ball Valve)

Scientific and Technological Achievement Appraisal Report (Anti-static Safety Ball Valve, High-pressure Hollow Ball Valve)

Safety Production Standardization Certificate

Safety Production Standardization Certificate

Non-leaking, long-life steel ball valve

Non-leaking, long-life steel ball valve

Welding ball valve inspection report 202101034

Welding ball valve inspection report 202101034

Ball Valve

Ball Valve

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