1. Choose a professional saw blade, because the hardness of industrial aluminum profile is not as big as that of steel, it is relatively easy to saw, but because the hardness is not large enough, it is easy to stick to aluminum, so the blade must be sharp, and it must be replaced after a period of use. 2. Choose a suitable lubricant. If you do not use lubricant for dry cutting, the cut surface of the aluminum profile will have a lot of burrs, which is difficult to clean and will damage t......