“The current reason why steel companies still have profits is mainly to digest the previous inventory of low-priced raw materials. Now that the price of iron ore has dropped, the price of coal has been rising, and when the inventory of the previous period is always useful, it may be next mont
Guidance: The main role of unloading, unloading, mixing and synthesis sections is to fully mix a variety of raw materials for the manufacture of ceramsite sand to meet the requirements for the next section and to make preliminary preparations for the manufacture of ceramsite sand. The prin
We all know that the summer temperatures are relatively high and will often be accompanied by the occurrence of heavy rain, so 12-ton cranes are prone to various breakdown problems. If we want to keep the 12-ton cranes in high performance in summer, it'
Semiconductor type : It is made by using some metal oxide semiconductor materials, and the conductivity changes with the change of the composition of the ambient gas at a certain temperature. For example, an alcohol sensor is prepared by the principle that the resistance of the tin dioxide is dra