double silk-covered copper wire 双丝包铜线

double silk-covered wire [电] 双丝包线 ; 双层丝包线

single cotton double silk covered 单纱双丝包

enamel double-silk-covered wire 双丝包漆包线

single-cotton double-silk covered 单纱双丝包的

single cotton double-silk covered wire 单纱双丝包线

double silk-covered co er wire 双丝包铜线