Why: Roller struts and bearing seats are extruded .......
Recently, Hans Juergen Kerkhoff of the International Steel Association Economic Committee pointed out that although the market performance in the fourth quarter of 2011 was weak, global steel demand growth in 2011 still reached 5.6%, mainly due to the strong r.......
Pump noise source analysis: Pump room noise is noise caused by the pump and motor noise caused by a comprehensive noise source. As the motor noise, there are three parts: aerodynamic noise, mechanical noise and electromagnetic noise. When the motor is working, the airflow noise of the cooling a.......
Emboss is a product of the combination of sculpture and painting. It uses compressed methods to process objects, and uses three factors such as perspective to express three-dimensional space, and only for.......
In May, for the steel market, it did experience a lot of extraordinary things, but no matter how stimulated the policy news, domestic steel prices have always been on the brink of rising, and they can't get anywhere. The continuous high-yield complications.......
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In the municipal pipe market, plastic pipes are developing steadily. Plastic pipes replace traditional cast iron pipes and cement pipes in terms of water supply, gas supply and sewage application. PE, PP-.......
At the 23rd Harbin Fair, Jixi Hengshan District signed a total trade volume of 157.58 million US dollars. At the Harbin Fair, Hengshan District organized 4 economic and technological cooperation projects and 16 trade contract projects. Among them, there are 1 provincial contracted project an.......
Recently, the rapid development of home hardware, cabinet hardware accessories has become the industry blitz, and intelligent hardware to the industry's development has increased a touch of bright spots. As consumer demand continues to increase, more deman.......
CWF series of marine smash pump centrifugal impeller pump open impeller for domestic sewage at temperatures below 85 degrees Celsius, the soft dirt crushed and transported. The maximum diameter of the solid particles after crushing is no more than 5 mm. It is also suitable for the solidificati.......
[China Aluminum Industry Network] With the rapid development of China's economy, large-scale public buildings and high-rise buildings have developed rapidly. As a material facade with light weight, high strength, thinness, large surface, and fine characteristics, it is rapidly applied .......
The development of Chinese herbal medicine feed additives is a large and complex system engineering, and its content is very rich. There are theoretical problems, as well as engineering, standards, methods and other practical issues; there are veterinary problems, a.......