... etc. 2 Sintered GearsGears, Sprockets, Helical Gears, Bevel gears, Double Gears, Spur gear, Curved gear, Rack gear, ... for mass production Powder Metallurgy production process:Quality Control Flow:Company Detailed Descriptions:1. ... high density & hardness, high efficiency, energy saving.7. Application: our products are widely used in garden tools, power tools, automobile, motorcycle, farm machinery ...