Bushings: I. D. (mm): 30-2800 O. D. (mm): 60-3500 Height(mm): 20-4000 Nuts: I. D. (mm): 100-1000 O. D. (mm): 150-2500 Height(mm): 20-3500 Worm wheel: I. D. (mm): 30-3000 O. D. (mm): 50-3500 Height(mm): 50-4000 1. Workblank weight under 5000kg 2. Net weight under 3000kg 3. Other special shaped parts can use other methods of casting or shaped moulds.