Insulation manufacturing is the process of preparing insulation products that prevent current flow and ensure the safe operation of electrical equipment through material selection and processing. The core materials include solids (epoxy resin, mica, ceramics), liquids (transformer oil), and gases (sulfur hexafluoride). The manufacturing process encompasses ingredients, molding, curing, and testing, and the products are widely used in motors, cables, transformers, and new energy equipment, being an indispensable basic process in power, electronics, and industrial manufacturing.