inner tube/rubber production line Feature: 1.it is mainly suitable for motorcycle and bicycle inner tube production. the automatic production line is adopted of cold-feeding or hot-feeding extruder to extrude green tube. 2.the cooling type is spraying cool, equipped with auto dig hole, paste air valve, auto measure length, automatic cut. 3.the whole line is drived with single motor, each part power is transmitted by one synchronous device.