With the development of the automobile industry towards centralized, pressurized power and so on, the protection of all kinds of pipelines and harnesses on automobiles is paid more and more attention. These protectors are also important for the improvement of vehicle durability. At present, the mesh flexible braided tube, heat shrinkable cloth (tube), since the cloth (tube) is the monofilament in the vehicle protection system in the three major application points. (Including but not limited to polyester, flame retardant polyester, nylon 6, nylon 66, flame retardant nylon 66, polyphenylene sulfide, and other materials, High-shrink polyethylene), the product has been through GM, Ford, Chrysler, BMW, Mercedes-Benz and other internationally renowned vehicle factory recognition and continued mass production for several years in the domestic market almost all replace the same imported products, product performance, affordable. The annual production capacity of 700 tons of such products.