Upgrade with features: tensile strength, good impact resistance, long life, use of small elongation, into a good groove, good flex resistance, suitable for long-distance, large capacity, high-speed material handling. Uses: widely used in material handling of coal, mining, port, metallurgy, electric power, chemical and other fields. Species: the performance of the plastic cover can be divided into: ordinary type, flame retardant, cold resistance, abrasion resistance, heat resistance, acid type and other species. The internal structure can be divided into: general structure, Cross, embedded coil ripstop type.