brushed surface by brass brush wheels
...刮四按钮孔(removing burrs in 4 button holes) 相比看frame铸(die casting)铜丝刷磨面(brushed surface by brass brush wheels) 冲内窗口(internal表面喷底油(applying primer coat to top surface) trimming)你看工艺 英语内窗四边磨砂纸(abrading internal...
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