1. Stainless steel ball 2. Low price & High Hardness 3. OEM service accepted 4. Low noise &wear resistance ... primary processing of wire to high-level precision steel ball.MAIN PRODUCTS:1. Stainless steel ball, with material AISI304, 316, 420C, ... 1086.3. Chrome steel ball,with material: AISI521004. Flying saucer steel ball5. Precision casting, including auto parts, machine parts, hardware handles, etc ...