Wire and cable wire and wire specification: 1*7-0.85mm 1*7-1mm 1*7-1.2mm 1*19-1mm 1*19-1.2mm 1*19-1.5mm 1*19-2.0mm above specifications main wire and cable company manufacturing small size cable, some large cable, cable company will use 1*7-2.4mm 1*7-2.7mm 1*7-3.0mm 1*7-3.96mm 1*, even larger specifications, these specifications are the main specifications. To be used for large communication projects. Of course, some optical cables use optical cable steel wire, 0.45mm 0.7mm 0.8mm 0.9mm 1.0mm 1.2mm 1.4mm 1.6mm and so on. The amount of 0.45mm and 1.0mm was the largest. Optical cable steel wire is generally phosphating steel wire, and has requirements for phosphating layer. In addition to phosphating steel wire, there are special requirements for the use of galvanized steel wire. Galvanized steel wire is divided into hot-dip galvanized steel wire and galvanized steel wire. Zinc coating is required for zinc layer content (the specific galvanizing standard parameters are inquired in the 20118-2006 standard).