... TPE,TPV,HIPS,PC,:PMMA,Acrylic,Nylon . 3)Good heat dispersion4)PC cover is good for tenacity and quakeproof5)Tube need not glue but ... screw ,and have suitable holder for it6)All parts ... at 92%.10). Good quality and good heat dissipation.11). Different kinds of base for your choice, make it convenient for replacement, also ...