Onyehn Triangular Scale Ruler,ZIYUMI for 12 Inch Architectural Triangle Ruler Color-Coded Grooves Design for Architects Students Draftsman Engineers

【PRODUCTS DETAILS】30mm/12inch triangular architect's ruler has three sides and six different proportions. 【GROOVES DESIGN】Features a smudge-proof concave design to keep your drawings clean. 【TRAIT ANALYSIS】Ideal for architecture and scale technical drawing, Features clear colour codes graduations, printed using UV ink for optimal resistance 【RATIO LEVEL】1:100,1:200,1:250, 1:300, 1:400, 1:500 【VARIETY】Three different coloured sides it makes for quick selection of the measurements and scale you need.

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Onyehn
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