Production and sales: wire and cable (except for products restricted and eliminated by the national industrial policy), steel cored aluminum strand, line iron pieces, steel strand, aluminum strand, copper aluminum clamp, tension clamp, cross arm, telephone line, jumper, iron wire, optical fiber box, junction box, junction box, junction box, well cover, corrugated pipe, flat wall pipe, sub pipe, plum pipe, PVC drain pipe, anchor rod, cement cushion block, silicon core pipe; Cold drawn steel wire, hot galvanized steel wire, wooden pole, bird thorn proof, communication optical cable, optical cable welding machine, iron tower, high voltage metering equipment, power sheath, warning tube; Sales: electrical equipment, mechanical equipment, experimental instruments, electronic equipment, computers and consumables, labor protection appliances, mechanical and electrical products, communication equipment, optical cable transmission equipment, monitoring equipment, optical fiber accessories, high-voltage insulation equipment, enamelled wire, power cable and accessories, power construction tools, pre twisted wire; Import and export of goods. (Projects that must be approved according to law can only be operated after being approved by relevant departments)