... Housing 2) Aluminium Bronze Worm 3) 8620/20CrNiMo shaft Features:Gearbox, Gear case, Gear, Worm, Worm Shaft, Casting, Sand-Casting1 ... line name Production Line Capacity Actual Units Produced(Previous Year) Stamping Parts & Machining Parts Product Line Gearbox 1,000 Pieces / Month, ... Pieces / Month, Automobile Stamping Parts 800,000 Pieces / Month Gearbox 5,000 Pieces, Gear & Worm Gear 40,000 Pieces, ...