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【3 Sides Design】: The classic architect's three sided scale includes 3 sides and 6 different scales: 1-1/2, 1, 3/4, 3/8, 3/16, 3/32, 1/2, 1/ 4,

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2PCS Architectural Scale Ruler, 12 Aluminum Architect Scale, Triangular Scale, Scale Ruler, Triangle Ruler, Drafting Ruler, Architect Ruler, Metal Scale Ruler, Architecture Ruler(Blue+Black) : : Stationery & Office Supplies

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2Pcs Engineer Scale Ruler Black Imperial Aluminum Alloy Scale

Architectural Scale Ruler, 2pcs Aluminum Triangular Scale Ruler

Triangular scale is designed to equip architects, engineers, artists, designers, students, teacher with the right tools for their various projects.,

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ECYC 12 Triangular Scale Ruler 1:100/200/250/300/400/500 Plastic Engineering Mechanical Drafting Ruler : Office Products

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Triangular Ruler, 12 inch Metal Ruler, Triple Sided