亚洲情综合五月天-久久99国产精一区二区三区-久久天天躁夜夜躁狠狠85-成人免费看黄网站yyy456-日韩欧美群交p片內射中文-久久99热这里只频精品6

On June 28, 2019, the seminar on valve flow resistance index and energy efficiency evaluation standards was held in Shanghai energy efficiency center as the theme activity...

The international pump and valve technology business report analyzes the main drivers of growth and the growth prospects of various regions and industries...

"Patrimony of arteries and veins, power jack", on March 29-30, 2019 Chinese instruments to learn academic annual meeting was held in Beijing friendship hotel, this annual meeting topic...

On the afternoon of March 27, 2019, the third executive director (extended) meeting of valve branch of China general machinery industry association was held in hangzhou.Huang...

The ethylene glycol unit No. 2 of the Shanghai Petrochemical Department, through optimizing production...

Recently, a speech by Xin Guobin, deputy minister of the Ministry of Industry and Information Technology and director ...

After decades of development, China's valve industry has developed thousands of valve manufacturers. Although the number is large...

Recently, the Ministry of Industry and Information Technology released Document No. 23 of 2018, approving 594 industry standards and 63 industrial measurement technical specifications. Among them, the four valve industry...

In the recent survey and research activities conducted by the Municipal Science and Technology Bureau, the issue of scientific and technological innovation of enterprises has become the focus of researchers. This year, the Municipal Science and ...

It is reported that on April 21st, the Beijing Customs (formerly the Beijing Entry-Exit Inspection and Quarantine Bureau) together with the Beijing Municipal Science and Technology Commission and the China Instrument...