The I sold YOUFA galvanized steel pipe, Lida hot galvanized pipe, galvanized pipe Hua Qi, Dongsheng galvanized pipe, these products were sold in Tianjin, Beijing, Hebei surrounding places. Galvanized pipe sulphate electro-galvanized iron alloy process, is to the production trough and trough perforation direct solution bring out or overflow. Each step of the production process from the circulatory system. What is the galvanized pipe? Surface welded steel pipe hot-dip or electro-galvanized layer. Galvanized increase the corrosion resistance of the steel tube and prolong life. What is the use of galvanized pipe? Galvanized pipe is very versatile, except for water distribution, gas, oil, generally low-pressure fluid line pipe, the oil industry in particular is also used as a marine oilfield oil well pipes, pipelines, chemical coking equipment, oil heaters, condensing cooler, coal distillate wash oil exchange Used pipe trestle piles, mine tunnel support frame tube. Galvanized there several? There are two major categories of hot-dip galvanized and electro-galvanized. Hot dip galvanized wet, dry, lead, zinc method, oxidation reduction process as shown. The main difference in the method of hot galvanized steel acid leaching cleaning, what method of activating the surface of the tube to improve the quality of zinc coatings. Now used mainly in the production of dry-and oxidation-reduction method, electro-galvanized zinc coating surface is very smooth, dense, homogeneous; having good mechanical properties and corrosion resistance; the zinc consumption 60% to 75% lower than the hot-dip galvanizing. Electro-galvanized technically have a certain complexity, but to use this method for single-sided coating, a different coating thickness of the inner and outer surfaces of a double-sided coating, and a thin-walled tube galvanized mused.