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1.Triangular ruler set is durable, lightweight and reliable, hard to bend the rulers and destroy the shape.
2.Quick and easy to read. Sharp graduations and precise markings perform well on any surface.
3.Designed to facilitate the drafting and measuring of architectural drawings, such as floor plans, blue prints, and orthographic projections.
The rulers with right-angle are useful tools for architects, engineers, artists, designers, students, teacher, etc.
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