This problem is common. Since most of our products are prototype, we cannot achieve consistent surface finishes just like batch production. For products without surface treatment, different equipment, different operators, different tools, etc. will lead to differences in the processed surface.

For products with surface treatment, due to the particularity and scarcity of the surface finish process, different batches of orders cannot be guaranteed to have the same finish. For example: Aluminum anodized color, there will be color difference more or less with each time, even though you choose the same opition of color.

If you need the totally same surface finish of batch products and samples, it is recommended to keep 1-2 samples at PCBWay, and then we can mass-produce the specified products according to the samples.