,  ,  , compared with the traditional water dropping system. Bring environmental protection, energy saving and beautiful effect. Then the question arises.. (1) the timing of installation of metal falling water. Nal frame must be complete and qualified. two. Ves,  ,  , 2. roof tiles extend the eaves length 30 to. UN out or eave; 4. cornice height is consistent. 6. scaffolding frame from eaves 300 to 500mm, scaffolding from eaves height 500 to. To the downpipe position; 9. rainwater pipe installation position. S any doubt, please call to consult!