Description
Triangular technical scale ruler - 30cms. The scales covered are as follows: 1:100 / 1:200 / 1:250 / 1:300 / 1:400 / 1:500.
Triangular technical scale ruler - 30cms. The scales covered are as follows: 1:100 / 1:200 / 1:250 / 1:300 / 1:400 / 1:500.