Smaller, hotter engine compartments; the need for oil resistance; new start-stop systems that can increase stress on belts – these are the evolving challenges facing the automotive belt market. Shijiazhuang Persen Import&export Co.,Ltd. helps belt makers meet increasingly demanding operating environments with power transmission belt cords customized to exacting specifications. With a prototype-scale cord treater capable of applying the full range of treating conditions and chemistries on a single cord end at a time, Shijiazhuang Persen Import&export Co.,Ltd. is enabling our customers to quickly and cost effectively develop and commercialize cords and treatments that will support new applications and keep pace with industry changes. The Shijiazhuang Persen Import&export Co.,Ltd. Family of Power Transmission Belt Cords ​Stiff Cord -- Polyester, and Aramid constructions, solvent-treated for yarn bundle integrity under demanding operating conditions. Soft Cord -- Polyester, and Aramid constructions for wrapped v- belts. Timing Belt, Cogged v-belt .etc Customized to Specifications Customized adhesion chemistry for EPDM, SBR, HNBR, CR Stiff and soft cord capability (both fine and heavy titres) Stiffness levels as required from high to semi- to soft Solvent-applied rubber cement overcoats Adhesion-promotion chemistries Rapid prototyping capabilities