Trapezoidal section rainwater drainage channels in vibrated concrete model “A22” in elements 500 mm long.Model 500x500x20Entry to rainwater drainage channels in reinforced vibrated concrete 1000 mm long.BrochurePDFRainwater drainageDWG - AutocadRainwater drainageXLSPricesITEM OF CONTRACT SPECIFICATIONSRAINWATER DRAINAGE CHANNELS IN VIBRATED CONCRETE WITH CONE SHAPED U-SECTION FOR FITTING ON VERTICAL AND INCLINED SLOPES. SIZE 500X500 H.200. OPENING END FOR RAINWATER CHANNELS SIZE 1000X500 H.200.