Certification : CESpecification:Name:Triangle rulerMeasurement accuracy:1mm.Specification:Aluminum alloy triangular ruler (18cm metric)Aluminum alloy triangular ruler (metric 30cm)Specification:Metric aluminum alloy models-smallMetric aluminum alloy largeMaterial :Aluminum AlloyAluminum AlloyTrilateral size:265x188x188mm430x300x300mmMaximum scale length:18mm , 30mmThickness :4mm , 4mmFeatures:1. Product use: straight line cutting; professional drawing; decoration design; angle measurement; mechanical hardware industry measurement; office use;2. The aluminum alloy material is made of aluminum alloy material, which is light and convenient, with clear scale, good oxidation resistance, and durable. 3. Thickened ruler design The overall ruler thickened design, thickness up to 4mm, durable.4. The stamping scale is clear and the stamping scale forms an indentation on the surface of the ruler body,Note: The data are measured manually, there will be slight errors, please refer to the actual productPackage included:1xTriangle rulerDear buyers, we appreciate your business, if you are satisfied with our service,please leave us a positive feedback and rate the details of the transaction (Detailed Seller Ratings) with a"PERFECT 5 STARS".If you have any problems, broken, quality problems, please don't worry, and don't leave bad feedback.Please send us an email first, we will reply you as soon as possible, please allow us to respond within 12 hours.We understand your mood, and will provide you with the best solution for your problem,please give us the opportunity to solve the problem,For any case,please feel free to come to us,we are always here.look forward to and thank you for your trust.