This standard specifies the product models, specifications, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of flame-retardant steel cord conveyor belts for coal mines. This standard applies to flame-retardant and anti-static steel wire core conveyor belts for coal mines (hereinafter referred to as "flame-retardant steel rope core belts").
MT 668-1997 history
2008MT 668-2008 Steel cord fire resistant conveyor belting for coalmine
1997MT 668-1997 Specifications for flame retardant steel cord conveyor belts used in coal mines