... resisting, excellent surface quality and high hardness.7)Using:1. General industry for automobile, motorcycle, bicycle manufacturing, special bearings & ... Steel Ball Manufacture Co., Ltd. Business Type:Manufacturer, Trading Company, Distributor/Wholesaler Product/Service(We Sell):Steel Ball,Ball ... :Ball King Number of Employees:101 - 500 People Company Website URL:http://lontencn.com 0.5mm-50mm valve ...