产品概述 Our premium cast iron coated sand castings adopt advanced resin coated sand molding technology, a high-precision and high-stability casting solution widely recognized in the global foundry industry. 技术优势 Compared with traditional green sand casting, this process delivers higher mold hardness, better molding stability and tighter dimensional tolerance, effectively eliminating surface burrs, trachoma and dimensional deviation common in ordinary castings. 材料与工艺 Manufactured