Chrome cylindrical Square; chrome cylindrical Square is mainly used for the production of mutually perpendicular crossed at right angles to test and inspection of parts or components related to the surface can be used as the benchmark measure of 90 degrees; chrome cylindrical Square is used to check the use of various machine parts are not an important tool for verticality. Test rods, Morse taper cone tool for checking the accuracy, precision taper plan's applicable to the machine tools and precision instruments taper spindle and hole. I plant: threaded plug, threaded ring, smooth Cypriot ring, smooth ring gauge, calipers, sine, Mohs gauge, various test rods, cylindrical Square, square boxes, flat, V-shaped frame, granite slab, flat feet parallel to the regulation, rectangular device, square boxes and other non-scalar gage. Mitsubishi imports of wire walking external processing Tel:. 18632765185 QQ: 1101491384 Website: http://www.hhjmlj.com/