The US government and car safety organizations said on the 22nd that the use of high-tech devices such as "alcohol locks" is expected to significantly reduce traffic accidents caused by drunk driving.
The "alcohol lock" is an in-vehicle device. The d.......
For the dust containing large amount of fiber, the dust removal mechanism of the dust-removing frame dust bag and the dust remover used are different from general dust. There are two working principles of the dust remover in the textile industry, namely the filtration mechanism and the centrifu.......