... for common spike and screw spike respectively, screw rolling machine, more than 30 sets of punch for different tonnage, ... vulcanizing machine,2 sets of 100T vulcanizing machine, 2sets of 50T vulcanizing machine,2 sets of injection moulding machine, rubber, nylon as ... track insulated cushion rubber shim plate, bridge rubber steadier, nylon fittings, all are made under advanced domestic technology and ...