Ji Cheng Machinery offers external processing services for metal hardware, aluminum alloys, zinc alloys, acrylic, steel structural sandblasting, stainless steel sandblasting, anodized aluminum pre-treatment sandblasting, fine sandblasting for copper parts, and precision part automatic machine sandblasting. We stock a variety of abrasive materials, including菱角钢砂 (angled steel shot), steel grit, stainless steel shot, glass beads, and alumina (brown fused alumina).