... ,such as glass, metal, Formica, plastics, fiberglass, linoleum and polished stone are good examples. Alumionium alloy series.Main body is ... valume lifter. things can be moved easily.Material: Fine metal alloy frame , mid quality materialCup typle:3 cups,rubber pad ... assembly ,suction cup,Iron aluminum alloy,silver/black lacquer,caoutchoucsuction-plane 170kgs,upright 120kgs the same ...