Insulator spindles for telecommunication overheads-lines; straight spindles
通信架空线路用绝缘子轴；直轴

1971-12-01

Insulator spindles for telecommunication overhead-lines; hook-shaped spindles
通信架空线路用绝缘子轴；钩形锭子

1971-12-01

Insulator spindles for telecommunication overhead-lines; notches
通信架空线路用绝缘子轴；刻痕

1971-12-01

Power current overhead lines; straight insulator spindles
架空线路；直线绝缘子轴

1959-09-01

Power current overhead lines; bent insulator spindles
架空线路；弯曲的绝缘体轴

1959-09-01

Power overhead lines; bent insulator spindles for screwing
电力架空线路；用于拧紧的弯曲绝缘子轴

1964-01-01

Power current overhead lines; bent insulator spindles, standard design
架空线路；标准设计的弯曲绝缘子芯轴

1959-09-01