The blade of a cutter knife is very sharp, and there are several parallel scribe lines on its blade. Because it is usually used to cut wallpaper, it is also called a "wallpaper cutter". Cutter knife is usually used in the decoration and advertising plaque industry. The biggest feature of the cutter knife is that it can be easy to replace the segmented blades. You can fold off the unsharp section of blade when using it, so the sharpness can be maintained without sharpening the blade frequently.
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Home improvement waterproof material selection?
According to the ground humidity and moisture conditions, the ground is too wet to make oily waterproof coating. Can choose JS, EVA and other water-based waterproofing agent or waterproof mortar. Generally applied three to four times, dry well, can do polyurethane waterproof paint, generally smear two to three times, the general thickness of the waterproof layer 2mm, after doing the leveling layer should do a protective layer.