Flat belt is one of the industrial belt belt in classification, different from V transmission and synchronization. Now in the market of common plane transmission with plane weaving belt, rubber canvas belt, high-strength nylon pieces of baseband and high-strength polyester belt. With the constant improvement mechanical equipment performance, flat braid and vulcanized rubber canvas belt use is becoming less and less, now in the market said the plane of the belt is usually refers to the high strength nylon pieces of baseband and high strength flat polyester belt. They can provide high mechanical strength and high speed plane transmission.