... 2.China manufacture 3.confirm you the quality you need Thrust ball bearing A.products1. Main products: 51100, 51200, 51300, ... machines, overhead cranes, heavy tower crane turntables, and turntables of drilling machines and so on.B. specifications1. Certification: ISO9001- ... long life, low noise, high-end technology, low vibration and conform to the export standard4. Package: Box packing, industrial ...