First of all, to deal with some spraying petrol, acetone for degreasing treatment with a file, fine sandpaper, oilstone will fatigue layer and oxide layer removed to expose the metal color.

• 首先应对喷涂部分用汽油、丙酮进行除油处理，用锉刀、细砂纸、油石将疲劳层和氧化层除掉，使其露出金属本色。