Based on the characteristics of mining machinery, put forward the following requirements of lubricating oil: 1. The volume of mining machinery and fuel tank volume is small, the less the amount of lubricating oil, oil temperature is higher, while working this request lubricating oil has good thermal stability and oxidation resistance. 2. Because of the…

Dolomite crystals belong to the third party system of carbonate minerals. Often iron, manganese and dolomite of isomorphism for the magnesium. When the iron or manganese atomic number than magnesium, known as iron manganese dolomite or dolomite. Pure-white; when iron grey; after the weathered Brown. Glass luster. When cooled diluted hydrochloric acid slow bubble. Is…