2021-02-23
Coal mine mark certification (referred to as Ma, Ka certification) is a kind of compulsory certification implemented by the National Coal Mine Safety Mark Office for coal mine underground supplies. All products in the mine product safety certification directory must obtain the certification certificate. No unit or individual is allowed to sell, purchase and use the mining products which are included in the safety sign management catalogue but have not obtained the safety sign. When applying for safety signs, product manufacturers need to fill in the application form, preliminary examination, qualified registration, evaluation and certification.
As a common product in the mine, safety helmet is not only used for coal safety certification, but also for labor safety certification.