螺旋式夹紧器 meaning in Chinese

screw type clamping unit

Connecting devices and separated entities with screw type clamping units
备有螺旋式夹紧器的连接器件及分隔设备；
Connecting devices and seperated entities with screw type clamping units
备有螺旋式夹紧器的连接器件及分隔设备；
Connecting devices - screw type and screwless type clamping units for electrical copper conductors
连接器件-铜电线用螺旋式及非螺旋式夹紧器；