Cast steel workshop is a production and manufacturing workshop integrating investment casting and numerical control processing. It adopts coated sand molding and pouring process. Raw materials are processed with high-quality spare parts of automobile parts stamping products and spare parts of wear-resistant and corrosion-resistant bearings. The processing range is 0.5-80kg. The general engineering carbon steel castings, nodular iron castings, stainless steel castings with complex structure and high precision requirements General purpose heat-resistant steel and alloy steel castings, general purpose wear-resistant and corrosion-resistant steel castings, high manganese steel castings, etc. the products involve precision steel castings, cast steel bearing seats, auto parts steel castings, agricultural machinery products steel castings, valves, valve body steel castings, etc. the annual production capacity of precision castings is 2000 tons. The investment casting workshop has an advanced investment casting production line, the most complete testing equipment, the annual production capacity of 2000 tons of precision castings, the design and manufacture of mould with drawings and samples, the mechanical processing with materials and the comprehensive production capacity of steel castings.