The working principle of the globe valve and selection principle introduction

Cut-off valve is also called the cut-off, is the most widely used type of valve, the reason why it is popular because of the friction between the sealing surface during opening and closing process is small, more durable, open height, easy to manufacture, easy maintenance , Not only for low pres

Talking about the precautions when using the grounding wire

Hanging the grounding wire is an important electrical safety technical measure. The operation process should be serious, serious, and in line with technical specifications. It must not be careless. Therefore, we must correctly use the grounding wire, standardize the behavior of hanging and di

National lighting industry Q1 exports to Brazil reached 868 million

From January to March 2017, the national lighting industry completed a total export value of 129 million US dollars (equivalent to about 868 million yuan) to Brazil, an increase of 27.41%. Among them, the cumulative export volume of lighting fixtures was US$84 million (accounting for 65.36%), u

Mahjong

Mahjong has been named formally as a sixth international mind sport, reports Beijing Daily.

Import valve VS domestic valve Who better?

At present, the valve has become one of the fastest growing industries in China's equipment manufacturing industry. The types of valves are constantly increasing, and the requirements of various industries for valve quality and technology are also getting higher and higher. However, li

China successfully developed

Chinese Academy of Sciences, Ministry of Security and Financial experts organized by the Chinese Academy of Sciences Shanghai Institute of Ceramics ferroelectric ceramics and devices research group undertaken by the Chinese Academy of Sciences research equipment research project "isos