Green silicon carbide, corundum and corundum stone hardness is not enough these three, plus a little coarse granularity, easy to grind knife sharpener draw horizontal gravel wholesale, and the other three stone polishing, grinding When does annealing. Size greater than 1000, there is no distinction between what sharpener gravel, mainly determined by the use of abrasive paste, and the grinding W1.5 high painted on a 1,000 rubies, abrasive grinding effect is that it is high W1.5 effects sharpener gravel recommend that Whetstone 2500 granularity effect. Dongyang jade stone factory specializing in sales of honing oil stone, a variety of specifications to meet your choice, strict production process to ensure quality, honing oil stone to more precision, high efficiency new and old customers! Sintered corundum abrasives are used and the amount of chromium oxide alumina powder mixing, forming, sintering at 1800 ℃. This abrasive compact, have high strength, mainly used for processing watches, instruments and other parts. Fiber abrasive is adhered containing or abrasive filaments (such as nylon) as the price of raw materials sand sharpener, its flexibility, and is mainly used for polishing metal materials and products. Dongyang greenstone Whetstone professional manufacturers, quality, manufacturing technology skills, you are welcome to inquire! Sharpener gravel factory, jade stone factory class quality, Inner Mongolia sharpener sand provided by the town of Dongyang Qianxiang beryl stone factory. Qianxiang Town, Dongyang beryl stone factory (www.322124.com) Zhejiang Jinhua, Abrasives leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In greenstone Whetstone plant leadership with the staff warmly welcome all inquiries negotiations to create jade stone factory a better future.