... Clutch AssemblyClutch assemblies for chainsaw, lawn mower, brush cutter, hedge trimmer etc. 2 Sintered GearsGears, Sprockets, Helical Gears, Bevel gears, Double Gears, Spur gear, Curved ... : carbon steel, copper steel, copper molybdenum steel, alloy.4. Production equipment:a. Hydraulic press with 200T, 160T, 100T, 60T, 50T, 25T ...