[Tianjin stable steady letter Abrasives Co., you can promote the star product ---- angle grinding] ① corundum (WA): slightly corundum hardness, toughness lower than corundum, when grinding, grinding angle grinding grain easily broken, so the grinding heat generated is small, mainly used for grinding of hardened steel, stainless steel, high carbon steel, high speed steel and other metal materials. ② black silicon carbide (C):. Crisp and sharp, hardness than corundum, mainly for low mechanical strength grinding metal materials, such as cast iron, brass and aluminum. ③ corundum (A): 3s angle grinding high hardness, toughness bighorn grinding 100, mainly suitable for grinding high tensile strength of metals such as iron, carbon steel, alloy steel, hard bronze and other metal materials. [Tianjin stable steady letter Abrasives Co., you can promote the star product ----] angle grinding mill films should be checked using the angle of the corner of what the mill in use, if the first did not work for inspection, it is easy cause accidents and damage the machine. Before checking: 1) Check the angle grinding nylon shell, the shell must not damage the machine. 2) Check the grinding wheel used to be intact. Inspection methods: with a wooden hammer tap grinding should not have broken the sound. 3) Check the grinding shield should firmly intact. 4) Check the cable, plug not damaged. 5) electricity load running a few minutes, check the tool rotating member is rotating flexible barrier. 6) Measure the insulation resistance of the body, and its value should not be less than 7 megohms (with a 500-volt megger). 7) before power, check the power supply voltage meets the requirements, and the switch in the OFF (OFF) position. nrs angle grinding | Hulunbeir angle grinding | angle grinding steady letter selected by Tianjin steady steady steady letter may abrasive Limited. Tianjin stable steady letter can Abrasives Co., Ltd. (www.tjwxwk.com) strong, credible, in Tianjin's Abrasives industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead to stable steady faith and you work into the brilliant, for a better future!