LFT是Long Fiber Reinforced Thermoplastics的縮寫，即長纖維增強熱塑性塑料。LFT主要有LFT-G和LFT-D 2種形式：
LFT-G(Long Fiber Reinforced Thermoplastic Granules) 長纖維增強熱塑性塑料粒料。
LFT-D(Long Fiber Reinforced Thermoplastics in Direct Processing) 長纖維增強熱塑性塑料直接在線成型
LFT-D-CM (Long Fiber Reinforced Thermoplastics in Directcompression moulding)
LFT-D-IM (Long Fiber Reinforced Thermoplastics in Direct injectionmoulding)