Cold work die accessories: including cold punching dies, cold stainless steel standard upsetting dies, cold extrusion dies, deep drawing dies, wire drawing dies, wire rolling dies, cutting dies, etc. 2. Hot work abrasives: including hot casting dies (hot forging dies, high-speed hammer forging dies, precision forging dies), hot extrusion dies, hot and cold stamping dies, die casting dies, etc. 3. Forming mold accessories: including plastic molds, vulcanized rubber molds, porcelain molds, laminated glass molds, powder metallurgy abrasives, etc. Within the scope of 52HRC, injection molds are generally considered within 45-60HRC. ☆Strength is a performance parameter that considers the hardness and softness of raw materials, which refers to the ability of raw materials to resist partial deformation, especially the deformation, embossing or scratching of plastic silicone rubber products. It is a comprehensive reflection of the compressive strength, plastic deformation hardware standard shape, ductility, wear resistance and other index values, so the strength value is often marked on the part drawing as a technical standard. ☆ Thermal forcing refers to the ability of abrasives to maintain high toughness under heat or high temperature standards; for example, hot-work abrasives and some cold-work abrasives are required to have certain thermal forcing. ☆The key to the strength and thermal force of the raw materials lies in the composition of the raw materials, the heat treatment method and the surface treatment of the mold manufacturing company.