Methods, requirements and standards for inspection of buttons:

        1, control samples or confirm sample. See if the color and model are in accordance with the sample;

        2, button surface should not have cracks, gaps, uneven and obvious scratches;

        3, plastic buttons, tying back no bubble; no broken edge, uneven phenomenon;

        4, the pattern should be no obvious deformation, no white eyes, white circle and other phenomena;

        5, eyes should be smooth smooth; all wear and broken needle, symmetrical and no big eyes. If it is a dark eye button, the dark hole should be smooth, no obvious burst.

        6, plating or other process treatment, the effect should be uniform, if some special effects can not be consistent, you can separate packaging.

        7, the same batch button color should not be lower than the GB250 four standard, compared with the sample, should not be less than the GB250 three standard.

        8, packaging inspection, in the visual inspection / customer requirements for all qualified performance test, and then the packaging. In the packaging should be placed in the certificate or other labels. The number of packages shall be in accordance with the requirements, and the actual quantity of each bag shall be in conformity with the specified quantity and shall be subject to full inspection when the thickness is different or other reasons exceed the allowable deviation.

        9, emergency button / Hood / button cairica buttons before delivery to try to test the button performance and availability, and provide a model and test samples to the customer with the automatic play button machine.