Do you know the hot two-dimensional code access control?

Nowadays, the protection of personal safety and the security barrier of property, the rapid development of mobile internet and QR code technology, the focus of social production and life has been transferred from the computer to the mobile, and because of the popularity of mobile phone QR cod

March 6 Shenyang Steel Market Price Quotes

The product name specification material steel factory/origin price (yuan/ton) is Φ6.5mm higher than yesterday's last week. General line Φ6.5mm Q235 Tonggang 4940 0 180 600 General line Φ6.5mm Q235 Siping red mouth 4910 0 180 600 High line Φ6. 5mm Q235 Steel 50000 180 600 High

Car rust-proof 7 big coup to car rust oxidation Say No


The body of the car is the face of the car, so the maintenance of the car body is a problem that the owner of the car can't ignore. Especially in the south with more rainy weather, the oxidation of rust seems to be a common cause for the maintenance of the owner.

Lithium determines the future of electric vehicles

Although the new energy vehicles represented by electric vehicles have set off a new round of revolution in the automobile industry in all countries in the world. However, as far as the current stage level is concerned, the development of electric vehicles mus

Drop-and-hook transportation needs to get rid of policy obstacles


A few days ago, the Ministry of Transport released a website saying that the second batch of pilot work on road drop-and-hang transport has recently started. The Ministry of Finance and the Ministry of Transport jointly formulated the "Second Batch of Pilot Proje

Salt spray test chamber common faults and treatment methods

Because the salt spray tester has long been tested for salt spray aging, the environment is prone to cause the salt spray test machine to have large and small faults. In order to solve the fault quickly, the salt spray aging test will continue smoothly. Some common faults are described bel