... the coating, shape, size Surface treatment: Ni, Zn, Epoxy, Gold, Silver, Tin, Ni+Cu+Ni and Cr3+ZnSize available: 0.5 ... -150mmShape: Block, Square, Disc, Cylinder, Ring, Rod, Bar, Stick, Tile, Fan, Ball 3. Competitive, Reliable, Reasonable Price FOB Shenzhen ...