Weihai Tianchenghualun special belt core Co., Ltd is a high-tech enterprise which is dedicated to the research and production of polyester tempered brown filament, a new kind of rubber framework material. The core product polyester tempered brown filament is an independently developed intellectual property right owned high-tech product, which is an overall solid core twistless structure rubber framework material, the substitute for traditional fiber rope structure framework material. It have the advantage of good adhesion, flex resistance, high strength, no deforming etc. It can be widely used in transmission belt, conveyor belt, hose, tyre and other rubber fields. The service life of the V-belt made of it can be 5 times longer than traditional v-belt.