LFT & LFRT, long fiber reinforced thermoplastic engineering plastics, compared to conventional short fiber reinforced thermoplastics, typically have a fiber length of less than 1 to 2 mm in conventional short fiber reinforced thermoplastics, while the LFT process The thermoplastic engineering plastics produced have been able to maintain fiber lengths above 5 to 12 mm. The long fiber is impregnated with a special resin system to obtain a long strip which is sufficiently wetted by the resin, and then cut into a desired length as required. The most used matrix resin is PP, followed by PA6, PA66, PPA, PA12, MXD6, PBT, PET, TPU, PPS, LCP, PEEK and the like. Conventional fibers include glass fiber and carbon fiber. Special fibers include basalt fiber and quartz fiber. The LFT of the long fiber material can achieve better mechanical properties. According to the final different applications, the finished product can be used for injection molding,extrusion and molding. Etc.