International Thickness Standard?
 

Hello everyone, my sincere apologies in advance because I don't know Chinese and I would like to avoid using Google Translate for broken translation.

I purchased a batch of CTcP plates from a Chinese provider and now there are certain complaints about thickness from my customers regarding 0.30mm and 0.25mm plates. The supplier sent a picture and claimed that this is international standard for thickness tolerance.

Is this true, or is it something they made up? :shocked:

It's true that the plate thickness we actually have used for many years is 0.27mm, but the label is 0.3mm.
The tolerance exists objectively, but I don't agree that the so-called international standard tolerances are all below the standard. :lt5:
The tolerance should be agreed between you and the supplier.

This is a convention, not a standard.