How to buy glass
Release time:
2024-04-22
1. Whiteness: No significant color is required for the surface material glass.
2, bubbles: allow a certain width, a certain length of the bubble there is a certain number, and can be pierced by the steel needle bubble is not allowed to exist.
3. Transparent pimples: refer to glass bodies with uneven melting. For glasses with a capacity of less than 142mL, there is not more than one glass with a length of not more than 1.0mm; For glasses with a capacity of 142~284mL, there is not more than one glass with a length of not more than 1.5mm, and the transparency pimples of 1/3 of the cup body are not allowed to exist.
4. Miscellaneous particles: refers to opaque granular impurities with a length of not more than 0.5mm and not more than 1.
5. roundness of cup mouth: it means that the cup mouth is not round, and the difference between its maximum diameter and minimum diameter is not more than 0.7~1.0mm.6. stripes: obvious visual inspection at a distance of 300mm is not allowed.
7. Low deviation of cup height (low deviation of cup height): The height difference between the highest and lowest points of a cup body is not more than 1.0~1.5mm.
8. Thickness difference of cup mouth: not more than 0.5~0.8mm.
9. Cut mark: refers to stripes or centipede-shaped cut marks, with a length of not more than 20~25mm and a width of not more than 2.0mm, exceeding the bottom of the cup, or whitish and shiny, and those exceeding 3mm are not allowed.
10. Mold printing: the cup body is a hidden printing of record lines, and it is not allowed to have obvious head-up.
11. Shrunken cup body: refers to the uneven cup body and the obvious head-up is not allowed.
12. Rub and scratch: Rub refers to the friction between the glass cup and the diameter of the glass cup, leaving marks of loss of luster on the cup body, which is obviously not allowed. Scratches refer to the marks left on the surface of the glass body by the collision between the glasses. Shiny ones are not allowed.
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