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What are the problems with the surface of plastic spraying products?

Update:Jan 30,2025
Summary:Pits: there can be no patches of pits, and dispersion and trace amount are allowed. Scratches: no scratches or too deep scratches, no leakage from t......

Pits: there can be no patches of pits, and dispersion and trace amount are allowed.

Scratches: no scratches or too deep scratches, no leakage from the bottom plate, and dispersion and trace existence are allowed.

Gap: the gap should be waterproof, and cracks, lack of welding and loopholes are not allowed.

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