... feature when considering usage such as underground mining where gas buildup can occur, also in ... ignition occursSuitable for adverse conditionsIncluding high humidity and high pollution environments.High-density materialAcid resistantAlkaline resistantAnti-staticLow MaintenanceThe ... cement,coal,gravel,fertilizers,ports,chemicals,quarrying,zinc mining,grain.Roller Diameters: 89mm,102mm,108mm,114mm ...