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Made of Polyethylene.
A fantastic model of centenary arch made of fine quality wood. It consist 13 precision-cut wooden blocks and a wooden arch. All pieces can be assembled to make a Catenary Arch
Aluminium, diameter 50 mm, in metal frame, with two hooks.
Balance designed to work for mass and force activity. Dual calibrated in grams and Newton.
Stove enameled.
