honor certificate

honor certificate

ZhongZuan Tools has passed ISO9001:2015, ISO14001:2004, OHSAS18001:2007, API Spec7-1 and imported HSE management system certification. Petroleum industry. Therefore, ZhongZuan Tools is listed as “National High-tech Enterprise”

Zhongzuan ISO9001 Quality System Certification Certificate

ISO9001:2015

Zhongzuan Diamond Core Drill Bit CE Certificate

CE Certification

Zhongzuan Diamond Polishing Pad CE Certificate

CE Certification

Zhongzuan Diamond Saw Blade CE Certificate

CE Certification