Cold Rolled Prepainted G60 Galvanized Steel Coils Strip Corrugated Roofing

Steel belt is a large output, wide use, variety of steel. According to the processing method, it is divided into hot rolled steel strip and cold rolled steel strip; According to the thickness, it is divided into thin steel belt (thickness is less than 4mm) and thick steel belt (thickness is more than 4mm); According to the width, it is divided into wide steel strip (width > 600mm) and narrow steel strip (width > 600mm); Narrow strip can be divided into direct rolling narrow strip and longitudinal shearing narrow strip by wide strip. According to the surface state, it can be divided into original rolled surface and plated (coated) surface steel strip. According to the use, it is divided into general and special (such as ship hull, bridge, oil drum, welded pipe, packaging, etc.) steel belt.

1. Pickling the whole roll of strip steel to achieve a bright and clean surface.

2, after pickling, through ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank for cleaning, and then into the hot dip plating tank, galvanized.

3, after galvanized steel plate storage, galvanized layer can be based on customer demand, generally not less than 500g/ square meter, any sample shall not be less than 480g/ square meter.