... coal,mine,harbour,matallurgy,power station,chemical etc.field.Type:(1)Conventional,Fire-resistant,Cold-resistant,Abrasion-resistant,Heat-resistant,Acid ... rigid structurt,Antitearing iron ring structure. Standard of steel cord conveyor beltTypeStandard and main technicalconventionalGB/T 9770 DIN 22131fire-resistantMT 668 ... 50*10-6m3/m3 40°C/72h No chap coals conveyor belt coals belt