Abrasive hardness depends mainly on the amount of binding agent number and density of abrasive grit off easily, said low abrasive hardness; on the contrary grinding stone, represents a high hardness. Hardness level is generally divided into the super soft, soft, soft, medium, medium-hard, hard and superhard grade seven, from these levels can be subdivided in a number of small magnitude. Abrasive grinding hardness measurement method Whetstone wholesalers, more commonly used hand cone, mechanical cone method, Rockwell hardness measurement method and blasting hardness assay. Dongyang jade stone factory specializing in sales of abrasive grinding stone manufacturers, a variety of specifications to meet your choice, strict production process to ensure quality, more abrasive with high precision and high efficiency new and old customers! Magnesite is magnesite cement and abrasive silicon carbide composite made to a certain percentage, not only inherited the high magnesite cement strength, hardness of advantages, but also to retain the good wear resistance of silicon carbide. Features 1), high strength, hardness, wear resistance, and has a good sharpening skills; 2), good profiling, polishing from light fast, good gloss; 3), magnesite cement viscosity is good, grinding block binding effect, do not jump edge; 4), sharpening less, spend and strong, high grinding efficiency; 5), low cost, good wear resistance, with a very high price. Dongyang greenstone Whetstone professional manufacturers, quality, manufacturing technology skills, you are welcome to inquire! Grinding Whetstone manufacturers | Liaoning grinding Whetstone | greenstone Whetstone factory affordable by Qianxiang Town Dongyang greenstone Whetstone plant. Qianxiang Town, Dongyang beryl stone factory (www.322124.com) strong, credible, Zhejiang Jinhua Abrasives industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead greenstone Whetstone factory and you hand into the brilliant, for a better future!