cutting wheel for metal with 80m/s 1.rubber mould, 2 nets and 2 pieces of ... paper 2.sharply, for metal,durabile,80m/s cutting wheel for metal with 80m/s1. This kind of disc is ... made of first grade material with high tensile strength fibre glass nets and strong resin ... black paper clearly, excellent surface .4.80m/s with 2 nets outside , 72m/s with 1 net inside of the disc.5.durabile ...