Lei Machinery Co., Ltd. Zhengzhou high pressure hanging roller mill products, mainly for grinding and processing metallurgy, building materials, chemicals, mining and other industries materials. The production of high pressure mill Model: YGM65, YGM75, YGM85, YGM95, YGM88, YGM130, YGM160 like. High Pressure Suspension Grinder main technical parameters: Raymond (Raymond) common sense: Hardness: Because it is destructive assay Raymond mill, so the unground of the original stone or precious of minerals can be used. There are two types of hardness scales, one is the absolute hardness, and the other is a Mohs hardness (a relatively hardness) Mohs hardness: Ten to common mineral used as a standard by scratching each other hard to distinguish what what soft 4r Raymond mill, it is customary on mineralogy or gemology is Mohs hardness. Mesh sieve is a general characterization of pore size of Raymond mill machinery, its conversion formula is cm = 16 / mesh, mesh has English and American, British refers to the number of holes per square inch; 5r Raymond Mill Raymond Mill machine _ _ Lei Lei machinery is provided by Zhengzhou Machinery Co., Ltd.. Zhengzhou Lei Machinery Co., Ltd. (www.hnzljx.net) (www.hnzljx.net) strong, credible, in Zhengzhou, Henan crushing grinding equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Lei machinery into the brilliant and you work for a better future!