Triangular Scale Ruler Helix 30cm / 12 Inch Metric Tri-scale Rule Solid Plastic Ruler

6 scales allow precision drawing for architects, engineers and carpenters. Scale Length: 30cm/12. Material: plastic. I send goods within 12 hours.

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【Dimension】- Triangle Ratio Scale Ruler; Material：Plastic; Measuring Range: 15cm / 5.9-inch. 【High Quality】- The triangle ratio scale ruler are made

Utoolmart Triangular Ratio Scale Ruler,30cm / 11.8-inch Architectural Scale,Plastic Ruler, Measuring Tool for Architects, Engineers, Draftsman and

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