Such as belt conveyor, bucket elevator, chemical mixer, ball mill and other equipment, what is the national standard?
There are some chemical mixer is with more than 2 kilograms of positive pressure, manufacturers need pressure vessel qualification certificateThere are lifting machine requirements, if similar to the elevator, it also requires qualification certificates
For example, you are used in food, to meet the requirements of food equipment (GB)Used in medicine the same way, is also the national standard
Brother, only to the application domain has the request, has not requested to the single
