Every year, major pests such as small green leafhoppers and tea-striped tea plants are active and abnormal, and they breed very quickly. The breeding of pests in tea gardens will affect the yield and quality of tea, seriously affecting the efficiency of tea planting, and the use …

China News Service reported on January 16th that the “base” Arabian peninsula, which had declared its attacks on the “Charlie Hebdo” in France, taught its readers in its magazine how to make bombs that could avoid airport security and launc…

• Model NO.: OD0302
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With the rapid development of computer and communication technology, in the field of industrial control, the research and application of open CNC systems is an inevitable trend. The first item of the “Made in Manufacturing” in the current National Priority Development High-tech …

Tri-eccentricity metal seal butterfly valve Benefits At present, as a butterfly valve used to achieve the pipeline system on-off and flow control components, has been in the petroleum, chemical, metallurgical, hydropower and other fields have been extremely widely used. In the well-known butter…