tender for supply of precast bench seat at nagar parishad rau. , precast reinforced cement concrete bench standard 3 seater with length 1500 mm ( feet) , 450 mm chair height and 1000mm backrest height size and seating width 15 inch. component breakdown (standard 5-plank design) seat/back planks: 5 rectangular pieces sized 1,500 mm × 100 mm × 50 mm.backrest top plank: 1 wider piece sized 1,500 mm × 200 mm × 50 mm.base supports: 2 l-shaped concrete side legs (approx. 100 mm thickness).material grade: cast using sturdy m-30 grade concrete with steel reinforcement. (supplying & fixing and including all necessary works as directed by engineer-in-charge at required places inc. all taxes)