... been widely used today to make plastic enclosure, cover, cowl, housing, parts, base, liner, tray, tub, container, case, dome, box, rack, ... Proficient skills and profound knowledge in dealling with thick gauge plastic sheet thick vacuum formed products making, up to 12mm;B. ... . Sawing is often used in this stages. Polishing is made additioanlly to smoothen the edges. 6. Drilling holes:Drilling ...