First, the material is differentAluminium clad steel is steel as the core material, outsourced with aluminium or aluminium alloy, belongs to a kind of outsourced aluminium products. Steel core aluminium stranded wire is made of multi-stranded aluminium and steel core stranded into an alloy cable.Sec

1, the difference between switches and routers?From the application:Switch and router in the use of the biggest difference is no more than the router can be achieved within the dial-up Internet, and then through the sharing of multiple computers at the same time to access the Internet, while the swi

1 IntroductionBefore 1980s, preserved wood poles (hereinafter referred to as "wood poles") were mostly used in communication lines. At that time, wooden poles were often called tarred poles because the preservation of wooden poles was treated with tar at post offices or long-distance service station

Steel StrandA steel product called steel strands is created by twisting lots of steel wires together. Galvanized, zinc-aluminum alloy, aluminum, copper, epoxy resin, and other coatings can be put to the surface of carbon steel as needed. According to the number of steel wires