Packaging & Delivery Packaging Detail: waterproof film, paper box, then outside for export wooden box Delivery Detail:7 days Types:KR... Series, KRV... Series,CR...Series, CRV...Series, NUKR... SeriesOuter Race:Hard-chrome platedExposed Surface:Cadmium, or Zinc-nickel platedCompany Brief:We're one of manufacturers in China for small Size Miniature Ball Bearings with the features of high precision ...