THE value of manufacturers' orders-on-hand for domestic production increased by five per cent in September year-on-year, the Census and Statistics Department says. It said the electronic, electrical, and printing and publishing industries scored double digit growth over the previous September. Compared with August 1995, the value of orders in September decreased by 6 per cent. The change may be affected by seasonal factors, the department said. Significant increases in the value of outstanding orders were recorded in the electronic products industry, at 17 per cent higher than in September, 1994. The electrical products, printing and publishing industries all achieved 16 per cent rises. The fabricated metal products industry saw a 10 per cent rise. There was a 15 per cent decrease in the value of orders in the textiles industry. The monthly survey covered about 300 manufacturing firms employing 50 or more workers each. Orders-on-hand refers to those received by manufacturers which were unfilled at the end of September.