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High-tech enterprise certification

High-tech enterprise certification

High-tech product certificate

High-tech product certificate

High-tech enterprises

High-tech enterprises

Zhongnan drilling

Zhongnan drilling

Hongxin Chemical

Hongxin Chemical

Jierun oil and gas exploration

Jierun oil and gas exploration

QMS certification

QMS certification

EMS certification

EMS certification

OHSMS certification

OHSMS certification

Address:
Room 202, 14th Floor, Building 4, Science Avenue Advertising Industrial Park, High-tech Zone, Zhengzhou City

Email us :
hznbmdf@zzhxhg.cn

Call us on :
+ 0371-61779006

Our company focuses on the application of diamond composite bits

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