we have already supply tarpaulin covers  to the railway 20 years . the quality requirements is very high on the railway tarpaulin cover. this kind tarpaulin usually with high strength polyester as the base cloth,then coating the high quality pvc material on both sides of the cloth to UV resistant, fire prevention, waterproof, anti-corrosion effect. pelase contact us if you want to buy railway tarpaulin cover. ..........com our quality will make your satisfie.