HOT Dip High Quality Z30-275g Galvanized Steel Coil  

It is made by putting rolled steel plates in and soaking them. Galvanized coils are widely used and have different materials. Today we will take a closer look at what materials it is made of! Due to different treatment methods in the coating process, galvanized coils have different surface conditions, such as ordinary zinc coils and fine zinc coils. flat zinc coil, zinc-free coil and phosphated surface, etc. Galvanized coils should have good appearance and should not have defects that are harmful to product use, such as no plating, holes, cracks and scum, excessive plating thickness, scratches, chromic acid dirt, white rust, etc.