Zhejiang certeg international co., ltd was established in 2006, which is a large professional enterprise engaged in manufacturing, trading, warehousing and machining steel. mainly deal various specification of steel pipes, shape steel, steel sheets series of steel materials, including cold-rolled, hot rolled steel plates and coils, thick plates, galvanized steel coils, channel steels, angle steels, beams, square steel tube, furniture tube, galvanized tube, welded tube, seamless steel pipe, spiral pipe, support tube, c-steel, colored steel tile, round steel, deformed steel bar and so on.