... Place of Origin: Shandong China (Mainland)Brand Name: ZTBModel Number:16000 SeriesMaterial: Bearing SteelBore:105-360mm Out Diameter:160-540mmmmNumber of ... we produce are 6000, 6200, 6300,6400, 6800 , 6900 and 16000.We have Open, Z, ZZ, RS, 2RS,RZ, 2RZ.N ... visit and negotiate! 2012 China bearing all types of bearings 16000 Series