The pre-twisted wire originated in the United States in the 1940s and 50s. The original product was a spiral protective wire used to protect the stress concentration position of the bare wire and the location of electric corrosion and arc burn. After years of development, pre-twisted wire fittings have been widely used in power transmission and distribution, optical fiber communications, electrified railways, cable television, construction, agriculture and other fields.

Post time: Apr-08-2018
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