GB/T7672.1-1987玻璃丝包绕组线第一部分:一般规定
Glass-fiber covered winding wires & Part 1 : General
GB/T7672.2-1987玻璃丝包绕组线第二部分:双玻璃丝包圆线
Glass-fiber covered winding wires & Part 2 : Double glass-fiber covered round wires