Washer for rigid tube for pannels, Dakota, plastic, d.20

Made of plastic materials, are necessary for the realization of the main structure of the buildings, both civil and industrial applications, from the ground up to the roof balcony. Supply and installation of rigid tube for panels, 2 meters long bar. Made of thermoset plastic. Specific use in construction. It keeps the formwork at same distance (in horizontal way) during the pour of concrete