Can't see the indoor light pollution must be resolv…

The night gave me black eyes, but I used it to find light. To be honest, this is simply a betrayal of the night. However, the fact is that it is very difficult to find dark nights nowadays. "Brightness" has brought us a richer and more convenient life while also causing serious light pol-----

Air conditioning maintenance, beware of "hidden ru…

Summer is the use of high-heat air-conditioning period, high practical frequency is bound to be a problem, once the air-conditioning is broken, take out the repair because they do not know what to do? No, today, Xiao Bian has brought you three non-regular military charges for nirvana. Interested pa-----

How to choose the gear pump correctly

1. According to the layout of the device, terrain conditions, water level conditions and operating conditions, determine the choice of horizontal, vertical and other types (pipeline, submersible, submerged, non-blocking, self-priming, gear, etc.) Pump. 2. According to the flo-----