YD/T 839.4-2000.Filling compounds and flooding compounds for telecommunication cable and optical fib...
YD通讯标准
YD通讯标准
YD通讯标准
YD/T 839.4-2014 通信电缆光缆用填充和涂覆复合物 第4部分:涂覆复合物
YD/T 839.4-2014.Filling compounds and flooding compounds for telecommunication cable and optical fib...