Patrice Lemée
Well-Known Member
I got some sanding disks I bought a while ago. Some have X100 on them. I found out that this is about 220 grit equivalent.
The problem is on the other 2 kind of disks the only writing is “GG 18” for one and “GD 13” for the other. I can't seem to find any equivalent for that.
Anybody knows?
The problem is on the other 2 kind of disks the only writing is “GG 18” for one and “GD 13” for the other. I can't seem to find any equivalent for that.
Anybody knows?