CHALLENGER , focused on design, development, manufactureand sale of the series bitumen handling equipments .CHALLENGER now is engaged in the production of as follows:Colloid Mills for polymer modified & emulsion bitumen plants;Polymer Modified Bitumen (PMB) plants;Bitumen Emulsion Plants;Combined PMB & Asphalt Rubber (AR) plants; Truck-mounted Bitumen Sprayers ; Truck-mounted Chip and Bitumen Synchronised Sprayers. Mobile Cold Asphalt Recycling Mixing Plants;All our products meet the requirements of international standards.