It is necessary to standardize the operating procedures of the horizontal type AMFV-III07L automatic production line and the vertical type ZZ416B plastic injection line, and to train and guide the casting application and operation of the production line, so as to improve the efficiency of the production line. Casting (municipal engineering castings, automobile parts, etc.) , the product defect is many, can not effectively reduce the cost, improve the casting process, improve the qualified rate of products. The leadership and management of the company are composed of people who have been engaged in foundry for many years, and they have strong ability of technology development, operation management and quality management. At present, the company has two vertical parting line non-pressure molding production lines (DISA), equipped with 4 sets of 3 tons of water-cooled cupolas and 2 sets of foundation-casting medium-frequency electric furnaces. The cupola and electric furnace are well equipped with high productivity (300 models per hour). The company mainly produces small ductile cast iron and gray cast iron, casting accuracy up to CT7-CT8, surface finish up to KA12.5, the annual production capacity of more than 2000 tons. (1) The surface finish of ductile cast iron and gray cast iron (auto parts) produced is low, the defect rate is relatively high, and the qualified rate of products cannot be effectively improved, so it is necessary to further improve the surface finish of ductile cast iron and gray cast iron. The company has complete testing equipment, mainly engaged in more than 50 varieties of seven series, including all kinds of ductile cast iron, gray cast iron, automobile parts casting technology, steel casting, city parts, agricultural machinery parts and animal products. (2) Casting products (fire pipe fittings, etc.) Product defects due to mold and casting problems. Standardize operation procedure, improve product quality, improve production efficiency. (3) Develop high-tech products, train and guide the production of precision castings.