Which household Whetstone, good jade stone factory credibility (certified), Hebei Qianxiang town home Whetstone provided by Dongyang greenstone Whetstone plant. Qianxiang Town, Dongyang beryl stone factory (www.322124.com) is specialized in the "stone processing" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Chen. In sand production line, the material is the use of force to crush large particles into a process of small particles of material Whetstone household supplies, equipment used accordingly called broken machinery. Material crushing or grinding is the use of force to small particles of material into a process of powder materials and equipment used in the corresponding called grinding machinery. Crushing and grinding broken pink short run-up, the equipment used by the appropriate abbreviation broken mill machinery are used in stone production line. Buy sharpener sand? On the election Dongyang greenstone Whetstone sharpener factory !! gravel fashionable home Whetstone Which is good, sharpener durable gravel, sand sharpener rich production experience. 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, said the 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. Method for determining abrasive hardness, 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, choose a variety of specifications to meet your household Whetstone recommended strict production process to ensure quality, more abrasive with high precision and high efficiency features new and old customers!