Simplified calculation of machining positive rake turning tools

Hole ring groove diameter detector

Processing a ten-threaded comb

Fujian Nan'an Stone "Nuggets" Middle East Harvest

July non-manufacturing business activity index rebounded from the previous month

Jiangxi Tungsten Industry: 5 Years of Production Decline 30% Industry Income Increases 6 Times

Mechanical seal common sense

Household self-operated flow control valve in Beijing show

Difficult to quantify is the biggest problem in intellectual property cases

Development and Reform Commission: The state is studying and formulating a new policy for the development of the western region

Different formulations use different pesticides

The multi-component coating developed by Jiangxi University of Science and Technology and Chongyi Zhangyuan and its preparation method won the national patent