... Installation: It takes 10 workers 20-30 days to install a villa for 250 square meters. LIGHT STEEL STRUCTURE DRAWING: ... :light gauge steel keel(all marked easy to erect), tile, gutter, wall panel, floor, window, door, sanitary, kitchen...and ... (Ⅲ) FITTINGS HARDWARE RAINWATER SYSTEM 75*50mmPVC RECTANGULAR TUBLEPVC EAVES GUTTER(WITH ACCESSORIES)ELECTRICITY28 LIGHTS,28 SWITCHES,24 SOCKETS,1 DISTRIBUTION ...