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It is very noisy, it is a disturbing behavior, and at most it is required to rectify, unless it is not implemented, at most criticism and education and a small fine, there will not be much problem.
The three certificates refer to: fire protection permit, health permit, and environmental protection (also known as pollutant) permit. >>>More
Product instruction manual, product quality card, product certificate.
There is no hard and fast rule, mainly depending on the quality inspection report.
According to the requirements of the relevant local departments, prepare the materials one by one and go to the declaration!
But I don't know which three certificates you are talking about: there is no place of production, production date, and manufacturer belongs to the three no products, and the product quality is definitely unreliable.