This set of normal maps will help you with texturing as well as creating a variety of interesting surfaces. Each texture is seamless and has an alpha option for importing, for example, into Substance Painter. You can also use it for other different programs. Textures have a resolution of 2k.

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Links:

1) Normal map kit Hard Surface edition
https://cubebrush.co/nikiyani/products/jqtcxw-Vrgq/normal-map-kit-hard-surface-edition?view_as_purchased=false

2) Normal map kit 2 Sci-fi symbols edition
https://cubebrush.co/nikiyani/products/7a4prw-kou8/normal-map-kit-2-sci-fi-symbols-edition?view_as_purchased=false

3)Normal map kit 3 Tile edition
https://cubebrush.co/nikiyani/products/pshuxw-3V6U/normal-map-kit-3-tile-edition?view_as_purchased=false

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Content:

1) More than 320 seamless textures
2) More than 320 alpha
3) 10 textures and alpha as a gift

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Formats:

1) .png
2) .obj
3) .mtl

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Software used:
1) Blender
2) Substance Painter
3) Marmoset Toolbag