Production and sales: wire and cable, steel cored aluminum strand, steel strand, line iron parts, power fittings, bellows, perforated pipe, silicon core pipe, directly buried pipe, warning pipe, three-color sub pipe, textile sub pipe, warning board, telephone line, fiber distribution box, multimedia box, distribution box, optical fiber channel, wiring rack, optical fiber accessories, wiring sub module, pigtail, junction box, joint box, wire rod, well cover, wire rod and plastic inspection well; Processing and sales: steel wire; Sales: anticorrosive oilwood poles, iron accessories, tools and instruments, signboards, threading pipes, building materials (except sand and stone), steel, stainless steel products, hardware and electricity, signstones, antennas, DC remote supply equipment and optical cables; Import and export of goods.