1. Different pump spare parts. 2. Different kind material 3. OEM service 4. Good ... steel, stainless steel, Hastelloy alloy, Stellite alloy, Mondale alloy, and other alloy castings.2.Manufacturing Processes: sand casting, investment casting ... : mining equipment, pump & valve, ship building industry, heavy machinery, engineering machinery, water treatment etc.6.Weight Range: Precision casting one-piece ...