Product name Specification Material Steel Factory/Origin Price Today (yuan/ton) Yesterday Price (yuan/ton) Change (yuan/ton) High-line φ6.5-12mm Q235 Shougang 5280-5400 5240-5400 Up 40 High-line φ6.5 -12mm Q235 Tangshan Steel 5280-5400 5240-5400 Up 40 High Line φ6.5-12mm Q235 Xuanhua 5

Wang Weixing, an expert from the Chinese Metal Society, said in an interview recently that sulfur dioxide treatment has become the most important issue in China's environmental governance, and the technical problems that commonly exist in flue gas desulphurization projects are also gradually exp

With the continuous development of science and technology, people are increasingly demanding the use of fans. As far as the development trend of foreign wind turbine technology is concerned, the development of wind turbines will increase in size, efficiency, high speed, miniaturization, and low nois

The reporter learned from the General Administration of Quality Supervision, Inspection and Quarantine that China’s first national mandatory standard “Limits on Fuel Consumption for Light Commercial Vehicles” (GB 20997-2007), which defines the fuel consumption of light commercia

The National Science and Technology Awards Office recently announced the 279 National Science and Technology Awards General Reward Program, which passed the two rounds of review and evaluation in 2007, including 195 National Science and Technology Progress Awards. The Chongqing Ma

Sprayed bar sprayers for large area spraying of pesticides use a piston diaphragm pump, which is a reciprocating positive displacement pump with pulsating pressure. Diaphragm pump power generally come from the tractor, driven diaphragm pump speed is generally 500 ~ 600r / min to two-cylinder pump,

Abstract: As a new type of conveying machinery, pneumatic diaphragm pump is one of the newer kinds of pumps in the world. This paper briefly introduces its working principle and characteristics, and summarizes the advantages and benefits of replacing it with gear pump. [Key words] Pneumatic diaphr