360 Degree Stainless Steel Protractor/Angle Ruler 1.Material:Stainless steel; All rulers can be made according to customer's drawings. Hangzhou Dongxin Measure & Hardware Factory have been established in 1996. Our factory is located in Hangzhou with convenient traffic. It's near Xiaoshan International Airport, and it takes 2 hours from Hangzhou to Pudong International Airport by car. We are specialized in the production of metal measuring tools, including S/S ruler, Tri-square, T-square, set square, protractor, caliper and level. We, under the tenet of "Honesty in Mind, Quality in Products,
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