Letter 30016

Material surface finishing problem  

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I am from the metal industry and i am facing problems with the Material surface finishing problems listed below: - Galvanize Iron

1) Black patches with looks like oil stain which is unremovable from the material surface.

2) material discoloration near both edges of the coil
- sometimes the edge surface is brighter than the center portion of the material surface.
- sometimes the edges are darker or black.

3) Intermittent black lines running along the coil surface.

Vin
metal industry - Singapore

Ed. note: Hello, Vin. Our experience here indicates that our readers are usually little inclined toward spending their time to help a stranger who keeps himself anonymous, offering only a nickname and disposable e-mail address. Please give us your full name and what you do, and a little detail about the installation, and I think someone will help you further. Thanks!

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