constructing and fabricating a Sandwich panel office in 250m square , which used as an office and showroom, all materials which used are a new type of constructing that environmentally sound , a high energy efficient and quikly constructed .
constructing and fabricating a Sandwich panel office in 250m square , which used as an office and showroom, all materials which used are a new type of constructing that environmentally sound , a high energy efficient and quikly constructed .