Welcome to YunCheng County Longteng Steel Ball Manufacture Co., LTD. Our company has more than 30 years history in manufacturing process technology for steel balls. We always lead the new development of technologies, new products and value-added services , also seeking new market demands in this industry. Over the years, many products have been created,applied, and enable real growth for customers into new marketplaces. LongTeng stell ball With large scale production capacity and professional ...