Hot Dipped Hollow Section is a square tube formed by a series of chemical reactions in the hot dip galvanized pool after the square tube bar or plate is crimped Hot Dipped Hollow Section specification:Size:12x12-500mm; Thickness: 0.6-20mmMaterial grade:Q195-q235Usage:Used for constructionHot dipped

Hot dipped hollow section specification:Size:12x12-500mm; Thickness: 0.6-20mmMaterial grade:Q195-q235Usage:Used for construction

For thousands of years, People have been utilizing and producing pipes for different purposes. It is confirmed that in 2000 BC ancient times, agriculturists or Chinese people have utilized pipes made from different materials like wood or bamboo, for water transportation. Since the 1800s, great progress have been accomplished in the technology of steel pipes, including improving manufacturing methods, developing applications for their use.