3B Small flakes of the coating are detached along edges and at intersections of cuts. The area affected is 5 to 15 % of the lattice.
3B Small flakes of the coating are detached along edges and at intersections of cuts. The area affected is 5 to 15 % of the lattice.
沿着方格边缘部分和方格交叉处有一小部分的薄片分离。有5%-15%区域的方格被影响。