Plumbing Detail drawings are given in this cad file. there is all plumbing detailed drawings are available. Galvanized steel water piping installed in the ground under a building, machine applied coating or wrapping. PVC water lines are approved under or within buildings. All joints installed below the floor slab shall be brazed, Placement drain of cleaning in the toilet with feeding for floor or plafond with support of galvanized pipe. Download this cad file now.