This product has been certified under the China Mining Product Safety Mark Certification System (CMAC) issued by the China Safety Mark Center for Mining Products (AQB). The certificate confirms that the flame-retardant buffer strip material used in coal mining applications complies with the relevant Chinese mining safety technical requirements, including MT/T 113-1995 and applicable CMAC certification rules.

The CMAC certification is a mandatory safety approval system for mining equipment and materials in China, similar in purpose to international mining safety and explosion-protection certification systems such as:

MSHA (Mine Safety and Health Administration, USA) approval for mining equipment safety compliance

ATEX Directive (EU 2014/34/EU) for equipment used in explosive atmospheres

IECEx (International Electrotechnical Commission Explosive Atmospheres certification system) for global explosion-proof conformity

Unlike general quality certifications (e.g., ISO), CMAC focuses specifically on coal mine operational safety, flame retardancy, and underground hazard prevention performance. Products certified under this system are permitted for use in coal mining environments in China, ensuring compliance with strict requirements on flame resistance, safety performance, and operational reliability under hazardous underground conditions.