1.High-quality stainless steel ball 1.ISO9000,SAE standard 2.many dimentions&materials long life,high precision 3.OEM Place of originShandong,ChinaMaterialsbearing steel(GCr15 ... , household appliances, chemical machinery, light textile machinery, food machinery and mining machinery, etc.Packing: export carton, steel drum;According to customers' requirementsPackageAccording ...