Why there is small spot on the etched magnesium dies?

Why there is small spot on the etched magnesium dies?

There shall be some reasons:

  1. Artwork. There may be some problem on the film. Inspect negative for pinholes in the black areas. If there is touch up to amend it.
  2. Blue coated missing spot: Touch up every part before etching, if there is white spot on it, touch up with mark pen.

About us

Henan Huawei Metal Co., Ltd (HWALU for short), a privately-owned enterprises established in 2001, there are 1,200 employees including a R&D team with 26 specialists and covers an area of 200,000 square meters.The International trade department began the export business on 2011, with the sales 12 and annual export about 20000 tons aluminum product.

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