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Best Choice Helix 
Helix K93X40 Triangular Scale Ruler, 30 cm The Helix 30cm triangular scale rule has 3 colour coded faces with markingsBest Value WINTEX 
WINTEX Triangle Metal Scale Ruler - 30cm - Aluminium Architect & Design Metric Ruler for Architects or Engineers - 1:20, Durable Aluminium Metal Scale Ruler: The Wintex triangular ruler is made of strong and durable aluminium. As a result, tLexziuo 
Lexziuo 2PCS 15cm Triangular Scale Ruler - Architectural Drafting Tools with 6 Scales (1:100/200/250/300/400/500) for En Precision Measurement Tool - The Lexziuo 2PCS 15 cm Triangle Scale features six professional scales (1:100, 1:200, 1:250GALAMAX 
GALAMAX Architectural Scale Ruler, Aluminum Triangular Scale Ruler Standard Metric 1:20, 1:25, 1:50, 1:75, 1:100, 1:125, 【Premium Quality】New updated Triangular scale with chamfered edges, giving you a safety guarantee. Every design deservesLicccccXin 
Triangle Scale (15 cm), Drafting Supplies, Scale Ruler, for General Use, Plastic, Special Scale Scale, Large Rate: 1/20, Measurement Range: Measurement range: 0-15cm, Shrinkage Rate: 1/20, 1/25, 1/50, 1/75, 1/100, 1/125LicccccXin 
Triangular Ruler, 11.8 inches (30 cm), Drafting Set, Triangular Scale, Plastic, Drafting Supplies, Stationery, Office Us Package Includes: 1 x 11.8 inches (30 cm) triangle ruler 30° x 1 45° x 1STAEDTLER 
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