... process of coating steel with a thin zinc layer Hot-dip galvanizing is a form of galvanization.It is ... patterning on the surface (often called a “spangle”)Advantages1- Hot-dip galvanizing 2- Very smooth surface and kinds of ... , verandas, rolling doors, warehouse, partitions, sheds, gutters, wall, underground piping, sashes, beams, fences, scaffolding, indoor decorations, ducts, ventilating pipes, ...