... Acrylic,ps,plastic *make light box ,LED letter thermoplastic vacuum forming machine 1.Do not have upper and lower die alignment, in ... provincial labor and material, directly to the acrylic plate on top of the machine the mold, heating, softening, plastic, cooling, an automatic ... thinning, choose thin plates, material is more economical;D. Die on simple, accurate, and do super small print, no waste;E ...