A non oil coated construction form is disclosed. It is composed of a pair of struts and a flat plate with its rear surface fixed successively with a plurality of nailed joints to the struts, the plate is made of braided hemp fiber impregnated in phenolic resin and hardened. After drying, cooling, cutting and thermocompressing to be formed into a laminated phenolic compound resin material with intensified mechanical strength and a flat smooth surface. The form of the present invention is stronger, more easily detachable, durable and cost saving compared to a conventional lumber form. In addition, owing to flatness and smoothness of its surface, the surface of the concrete body does not have to be buffed after removal of the form of the present invention.
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