Inspection unit: Inspection time: Year Month Day Check the basis Sanmenxia City, three of Work Safety Administration of Work Safety (2008) No. 13 article, "on the issuance of" dangerous chemicals, fireworks, metal and nonmetal mines, tailings, ferrous metallurgy, machinery manufacturing -----
Hot extrusion process is by extrusion on an extruder rod passing high pressure, for closing the extrusion cylinder in the bad material extrusion molding die with the same shape of an article advanced method of plastic working (hot extrusion common metallic The process is shown in Figure 1. The util-----
The world's tin resources are rich and concentrated. In 2007, the world's tin reserves and reserves were 6.1 million tons and 11 million tons respectively. China's total proven tin metal of about 5.6 million t, 2007 tin reserves of 1.7 million t, accounting for 28% of world reserves, ra-----
Moscow Institute of steel and alloys and research work of the Central Research Institute of Geological Survey scientifically proven bacterial leaching method is suitable for processing refractory arsenic concentrate. This concentrate is characterized by the inclusion of very fine-grained precious r-----
Metro is one of the major gold mine gold mine, a mining design scale of 500t / d, two design mining scale of 1250t / d, has now reached the production capacity of 2100t / d of ore mined by the middle of a 70m Extend down to a mid-section of 530m. As the ore mining extends deeper, the ore properties-----
With the expansion of power batteries, overcapacity has appeared. In the past two years, with the soaring production and sales volume of new energy vehicles, the battery that is the heart of new energy vehicles has entered a period of rapid development. The number of new energy vehicles in C-----
The construction of six advanced all-slewing tugs for the Fortescue Metals Group (FMG) in Perth, Australia will be driven by SCHOTTEL's rudder propeller system, which will use the ART 85-32W designed by Robert Allan. Type, SCHOTTEL will deliver 18 SRP 430 FP systems with a single power of 1765 k-----