The process refers to the production activity of removing 1kg of steel using turning. Rough turning mainly removes most of the machining allowance on the surface of the workpiece. Generally, it does not require high precision on the product size or roughness. The cutting depth and feed rate should be as large as possible within the allowed range. If the weight of steel removed during rough turning is not specified, an average assumption can be used that generating 1kg of final product results in 0.276kg of steel waste. The data comes from the production process of bearings, rollers, gear shafts, flanges, pump heads, couplings, and other electromechanical equipment accessories.