It is PA 6 Long Glass Fiber Filled Thermoplastic,LFT full name is long fiber reinforced composite material, is a fiber length longer than the SFT (short fiber reinforced material) composite material, made by injection molding process.
link:http://www.lfrt-plastic.com/long-glass-fiber-polyamide-6/pa-6-long-glass-fiber-filled-thermoplastic.html