Aluminum Triangular Metric Architect Scale Ruler 1:100, 1:200, 1:250, 1:300, 1:400, 1:500 (30CM 12")
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Aootech 12 Inch Metric Triangular Scale Ruler. Made from solid aluminum.
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Metric Scale - 1:100, 1:200, 1:250, 1:300, 1:400, 1:500.
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Three Sides With Six Different Scales. Packed In Transparent Plastic Box.
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Accurate measurements, embossed design, will not rubbing off during use.
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For Professional Applications, Architecture, Engineering, And Technical Drawing.
