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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 markingsGALAMAX 
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 deservesLexziuo 
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, 1:250Best 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, tLicccccXin 
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Measurement Range: 15cm; Scale Size: 1:100; 1:200; 1:250; 1:300; 1:400; 1:5Utopially Utopially 2X 1:20 1:25 1:50 1:75 1:100 1:125 Plastic Triangular Scale Ruler Scale RulerLrocaoai 1:20 1:25 1:50 1:75 1:100 1:125 Plastic Triangular Scale Ruler Total Size (.): 32.5 x 2.5 x 2.5cm / 12.7inch x 0.98inch x 0.98inch (L * W * T)TopHomer TopHomer Aluminium 15CM Blue Triangular Scale Ruler for Engineers, Architects, Draftsman [Accurate Scaling] Featuring precise and clear scale markers, the ruler body offers convenience and practicality for accAristo College Triangular Scale (F) 1:2.5:5:10:20:50:100 in Ecoblister The triangular ruler with the reduction scale 1: 2, 5 / 1: 5 / 1: 10 / 1: 20 / 1: 50 / 1: 100 (F) is ideal for mechanicaRASTKY RASTKY Architectural Scale Ruler 30cm Aluminum Triangular Drawing Tool for Architect Engineer, Precision Metric Scale Ru [PRECISE ENGINEERING SCALE] Professional tool with high precision for architecture, drawing and engineeringSTAEDTLER Staedtler Triangular Scale Aluminum 0 Start Black 561 7-9 Black Size: 169mm x 13.8mm x 13.8mmPacific Arc Pacific Arc 15cm Architect's Scale triangular scale PREMIUM DRAFTING RULER - Proportionally scale your designs with precision and ease using this premium architect ruler. 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surveying.Abvian 12 Inch Architectural Scale Ruler for Blueprints, Aluminum Triangular Engineer Drafting Tool with Laser Etched Markings, Professional Scale Tool: This 12-inch architectural scale ruler provides precise measurements for blueprints and technicstrrng 30 Cm Scale Rule,Scale Ruler Architect,Architectural Triangular, Plastic Triangular Scale Ruler,For Architectural, Bluep This 30 cm scale ruler is crafted from durable plastic, providing a lightweight yet sturdy tool for precision measurementooloflife Architectural Scale Ruler, Triangular Scale Ruler Metric 1:20, 1:25, 1:50, 1:75, 1:100, 1:125 Standard 30cm for Architec High Quality: Triangular Scale Ruler made of solid high-grade aluminum to reduce flex and warping.uxcell uxcell Scale Ruler Aluminum Alloy 30cm Engineer Triangular Scale Architect Rulers Black Material: Aluminum Alloy; Total Size: 325 x 24 x 20mm / 12. 8" x 0.9" x 08" (L*W*T)Liderpapel Liderpapel Aluminium Triangular Scale with Protective Bag Length 30 cm 1:20 1:25/1:50/1:75/1:100/1:150 Liderpapel Aluminium Triangular Scale with Protective Bag, Length 30 cm, 1:20 1:25/1:50/1:75/1:100/1:150Generic Architectural Scale Ruler, Aluminum Triangular Scale Ruler Standard Metric 1:20, 1:25, 1:50, 1:75, 1:100, 1:125, Metal R 【Premium Quality】New updated Triangular scale with chamfered edges, giving you a safety guarantee. 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