Zibo Dongsheng Casting and Forging Co., Ltd. is one of the largest steel ball manufacturer in China. Our company was founded in 1990. Our main products are Forging Steel Grinding Balls, Alloyed Casting steel Balls. We have the capacity of 150,000 tons of forging and casting products and 550 million yuan of output value every year. With strong technical force, advanced equipment, all the products gained the quality certificate of ISO 9001:2000 and are well sold all over the country, exported to over 30 countries and regions around the world. Forging Steel Grinding Balls: 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, 150mm Alloyed Casting Iron Balls: 10mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm</p>