1. Sand scraping workshop: It is mainly used to shake and impact the castings containing sand cores, so that the castings can take off their shells, thus obtaining clean and smooth castings.

2. Machining workshop: According to the delivery note and delivery date issued by the sales department, make and adjust the production plan reasonably to meet the sales needs, complete the mechanical processing of products, and do a good job in the warehousing and delivery requirements of products.