... Machine *Vacuum Acrylic,ps,plastic *make light box ,LED letter small plastic vacuum forming machinery 1.Do not have upper and ... be reused, no defects, fast, time saving.C. No external mold constraints, drawing a small amount of thinning, choose thin plates, material ... more economical;D. Die on simple, accurate, and do super small print, no waste;E. Without mechanical indentation process, so that ...