Compared with the plastic tube, the stainless steel tube has more excellent mechanical intension; resistant properties against pressure and heat, etc. as the substrate is steel tube, the product will not be brittle and aging. It is the upgrading replacement for galvanized tube used in the conveying tap water, coal gas, chemical products and other fluid, as well as heating engineering. Apart from the same shape and installation with the conventional galvanized tube, the product also plays an important role in delivering tap water through heavy caliber in place of aluminum and plastic composite tube. It is widely accepted by customers and becomes one of the most competitive new products in pipe market.