Fixed ball valve with a floating valve seat, subject to media pressure, the valve seat to move, so t......
Jc001.load('iframe') JIFrame.create({ 'url' : '/go.php?action=ads&ifra......
Recently, there have been frequent tragedies on campus, and children's safety issues have cause......
Cryogenic pump vacuum system operation should pay attention to what matters, in the face of some pro......
The geothermal structure is made of coiled water pipe and cement. The coil spacing is 150mm-25......
Jc001.load('iframe') JIFrame.create({ 'url' : '/go.php?action=ads&ifra......
Jc001.load('iframe') JIFrame.create({ 'url' : '/go.php?action=ads&ifra......
Electricity consumption has always been seen as a barometer of economic development. According to......
As people's demands for sleep quality continue to increase, people are increasingly demand......
On May 29th, the author learned from Sinan County Quality and Technical Supervision Bureau that a......
Scope of application: It is suitable for the fire of general Class B fires, such as oil produ......
Hot-dip galvanizing tubes react molten metal with an iron matrix to produce an alloy layer,......