... motor refrigerator, air conditioning bulb, quartz are processed, wax model, tooth model, the copper tin stainless steel of gold and silver ... of strength, jewellery industry water welder, model melts the repairing machine with wax, the winding the line and welding machine ... . * Sturdy and duable (whether all parts materials superior), model getting light and handy. * Burn, produce the living beings ...