The pre-oxidation treatment of gold concentrate before gold extraction mainly includes three methods of roasting oxidation, pressure oxidation and bacterial oxidation. Practice shows that roasting, as a traditional process, is still the most attractive treatment method in gold concentrate pretreatm

Following the 1139 orders made by Hualing Heavy Trucks in January, a year-on-year increase of 109%, the Hualing Heavy Trucks continued to maintain a high growth trend in February, achieving 1862 units of orders, a year-on-year increase of 282%, a year-on-year increase of 63%, and the growth rate w

Side parking is the best measure of a driver's driving ability. How to scale properly and smoothly is a skill that every driver is constantly pursuing and exploring. It is also true for learners who are new to learning a car. Here, everyone will teach y

The car can gallop on the road, relying on the precise cooperation of the various components, less one link, will have a lot of adverse effects on the normal driving of the vehicle. The throttle is in the engine, in a position similar to the gate, and it is naturally very imp

When it comes to "trucks", it is always easy to relate to words like "clumsy" and "bulky", and Volvo Trucks is obviously an exception. From autopilot to 3D printing, Volvo Trucks has fun with all sorts of "black technology", showing the countless possibiliti

On March 14, 2017, in Austria, Beiben Heavy and Steam signed a strategic cooperation letter with MAGNA's Steyr Engineering Technology Center (ECS) in St. Valentine. Bei Ben Heavy's chairman and party secretary Wang Shihong, chief engineer Zhou Yawei signed the agreement on behalf of Bei Be

According to the report, in the fourth quarter of 2016, Tongling City Industrial and Commercial Bureau organized energy-saving lamps, LED lamps, electric blankets, etc. for 11 manufacturers in urban shopping malls, supermarkets, specialty stores, large business operators and centralized business pre

BorgWarner has introduced a variable-profile turbocharger (VTG) for all types of gasoline-powered vehicles. The new advanced VTG solution is also perfectly matched to the new internal combustion engine system of the hybrid vehicle and is a core component of the future clean energy-saving propulsion

China National Heavy Duty Truck currently has three first-tier distributors in Beijing, which are located in Daxing Wulianhuan Commercial Vehicle City, Tongshun Road and DouDian. Beijing Northern Honghan Trading Co., Ltd., which is located in Daxing Wulianlian Commercial Vehicle City, has been ope

  At the bottom for nearly 9 years, small metal cobalt regained market attention with a surge in the market. In the past three months, the cumulative increase in domestic metal cobalt spot has exceeded 60%, and various types of cobalt salts have also risen across the board, and the gains have be

According to foreign media reports, this Wednesday (March 1, 2017), ZF's Technology Center (ITC) in India was completed. The center will focus on developing advanced electronic and software solutions for automotive and industrial applications, which will enhance the global R&D network while

Generally, when the wireless bridge is installed, the signal strength is recommended to be greater than 30dbm. If the signal is too weak, the stability will be degraded and the data transmission will be affected. Then how does the wireless bridge find the signal is weak after installation? What is