Small holes and cracks such as paint can not make peace, in line with national standards required repair putty smooth interior wall to get smooth and soft surface.

细小的孔洞及裂缝如涂料不能补平，需用符合国家标准的内墙腻子修补平整，以获得平滑细致的表面。

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Glass protective film machine is used to lay film on surface of glass. It is widely used for coating glass line and for glass of curtain wall.

该机用于玻璃表面自动贴合保护膜设备，广泛用于镀膜生产线和门窗玻璃、幕墙玻璃。

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More modern versions of the tool add in a laser beam projector, which allows builders to level out the device and "draw" a long line of light across a wall, indicating an exactly level surface.

FORBES: No. 18 The Level