Hot dip galvanized steel pipe, also known as hot dip galvanized pipe, is a steel pipe that is galvanized for general steel pipe to improve its service performance. Its processing and production principle is to make the molten metal react with the iron substrate to produce an alloy layer, so that the substrate and coating can be combined. How are hot-dip galvanized steel pipes processed? The process flow of hot-dip galvanized steel pipe is divided into the following steps: