in the past, most of the time the cleaning of the society is done by manual environment. but man is not a mechanical and intelligent machine. the efficiency of the work and the quality of the cleaning will become very low w...

　　the thing we worry about when were traveling is that money is stolen or lost, once stolen, it is more troublesome to go home, especially in some peoples tourist attractions, it is easy to let the thieves in the mix, so we c...

now the population is more and more, many festivals or holidays we can see the streets, quite crowded, this gives some lawless elements the opportunity to steal in a crowded environment or other crimes, so in many public plac...

　　although a screw is very small, but it is also an essential part of a motorized sanitation truck, and before we can drive an electric sanitation trucks need to be good to check and guarantee the safety of driving.　　parts ...

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the development of anything can not be accomplished overnight, always need a process, do not say decades ago, is ten years ago, people for electric sanitation vehicles, electric sweeper know little, or even do not know, and t...