Mg-Al-foot blade Material: Mg, Al and steel are two kinds of Mg-Al blade foot light weight, easy to use, easily deformed, and will not rust, easy to custody. 
 Mg-Al-foot blade uses: mainly used in parallel to the detection of flat, flat feet, machine table, rails and precision of the workpiece 
 Magnesium aluminum knife-edge ruler http://www.bthxzw.com/MLDKC.html 
 The main purpose of the knife-edge ruler: mainly used for straightness measurement and flatness measurement of optical gap law, with the amount of block used to test the plane accuracy. It has a simple structure, convenient operation, high efficiency measurement is commonly used measurement tools in machining. The accuracy of the blade foot higher than the general straightness error was controlled at about 1μm to measure the surface roughness R, for the accuracy of 0.025 m. 
 Knife-edge ruler should be chosen alloy tool steel, bearing steel or magnesium alloy material made of. Should be subject to the stability of the processing and to the magnetic treatment 
 Magnesium aluminum knife-edge ruler http://www.bthxzw.com/MLDKC.html 

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