About Us

About Us

A person with a sharp tooth who understands rocks

Standards and Qualifications

The main drafter of three national and industry standards, including “Ultra-Coarse-Grained Cemented Carbide Engineering Gears,” also holds over 20 technical patents, including three invention patents.

Hunan Province Specialized, Fine, and New Small and Medium-sized Enterprises

Hunan Province Specialized, Fine, and New Small and Medium-sized Enterprises

Occupational Health and Safety Management System Certification Certificate

Occupational Health and Safety Management System Certification Certificate

Quality Management System Certification Certificate

Quality Management System Certification Certificate

Environmental Management System Certification Certificate

Environmental Management System Certification Certificate

National Standard: "Technical Requirements for Supervision of Manufacturing of Full-face Tunnel Boring Machines"

National Standard: "Technical Requirements for Supervision of Manufacturing of Full-face Tunnel Boring Machines"

National Standard: "Engineering Gears Made of Ultra-Coarse-Grained Cemented Carbide"

National Standard: "Engineering Gears Made of Ultra-Coarse-Grained Cemented Carbide"

Group Standard: "Cutting Picks for Tunneling"

Group Standard: "Cutting Picks for Tunneling"

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