Huahai Corporation Business License

Huahai Forging Factory Business License

Huahai heat treatment factory business license

China Construction Bank basic deposit account information

Quality management system certification

Quality management system certification

Occupational Health and Safety Management System Certification Certificate

Occupational Health and Safety Management System Certification Certificate

Environmental management system certification

Environmental management system certification

American Petroleum Institute API 6A Monogram Authorization Certificate

American Petroleum Institute API 17D Monogram Authorization Certificate

Special equipment production license

Special equipment type test certificate

Huahai Trademark Registration Certificate