12 Inch Engineer Triangular Scale Ruler, Laser-Etched Solid Aluminum Engineer's Scale Ruler, Imperial Scale - 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, Perfect for Civil Engineering Drafting

الوصف

12 Inch Engineer Triangular Scale Ruler, Laser-Etched Solid Aluminum Engineer's Scale Ruler, Imperial Scale - 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, Perfect for Civil Engineering Drafting