The printed trademark shall have correct pattern, clear color, clear and firm handwriting.
The trademark shall be firmly pasted, without skew, missing, upside down or wrong pasting, and no corner or edge warping after being pasted.
The printing pattern of the manual is neat and the handwriting is clear.
The lettering and pattern of the box head are clear.
The printing handwriting and pattern of the certificate are clear, and there are factory name, inspector code and other marks.
The standard number to be executed shall be marked on the product or its instruction and package.
For the quality guarantee period of the product, if the quality of the product is more than three years and there is no problem, it may not be indicated.