打磨自行车内胎. 自行车内胎修理。一个人正在打磨内胎，以便在打补丁前涂上胶水进行硫化。

油漆工用角磨机。在粉刷油漆前打磨墙角表面，去除腻子

sandpaper rolls on textured white wall background abrasive material used for surface sanding a roll of sandpaper rests on a

sandpaper rolls on textured white wall background abrasive material used for surface sanding a roll of sandpaper rests on a

a roll of sandpaper rests on textured white wall surface the is brown cylindrical and lies partially unrolled to reveal its inner

珩磨机，用于抛光工件孔的内表面

焊接汽车或货车内翼板。使用焊接机修复锈蚀孔洞，焊接工作。打磨焊缝使其与新材料齐平

a man using an air die grinder with sphere rotary burr to smoothen the surface of damaged inner liner procedure in vulcanizing

在花园里修理自行车轮胎

自行车轮胎修理

将轮胎塞入外胎内

修补轮胎