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Coal mine energy is an important industrial pillar of many countries, but the underground transportation environment of coal mines is relatively harsh and the transportation conditions are poor, so it is very important to ensure the safety of conveyor belts. Since the 1980s, my country has begun to promote and apply flame retardant conveyor belts. The country has successively issued industry standards such as MT147.87, MT147-92, MT147-95, and MT914-2002, and implemented three certificates (inspection certificate, safety mark permit and production license) management for flame retardant conveyor belts to ensure the safety of underground conveyor belts in coal mines.