The difference in manufacturing process: galvanized steel pipe and seamless steel pipe are two categories of steel pipe, galvanized steel pipe surface is galvanized, can be welded pipe, can also be seamless pipe, seamless steel pipe manufacturing process is welded, and is seamless. Galvanized pipe corrosion resistant, seamless steel pipe can withstand higher pressure.

The coating surface of galvanized sheet is evenly distributed with a layer of zinc material. The coating of aluminum zinc/Galvalume sheet is composed of 55% aluminum, 43.5% zinc, and a small amount of other elements;

The difference between color steel plate and color steel tile: Color steel plate is a type of steel plate with organic coating, which is divided into single plate, color steel composite plate, floor bearing plate, etc. Widely used in large public buildings, public factories, transportation, prefabricated houses, and the walls and roofs of integrated houses, there are relatively few civil buildings using color steel plates. Colored steel tiles are formed by rolling and cold bending of colored coated steel plates. Color steel plates can be used for roofs, walls, suspended ceilings, etc., while color steel tiles are mainly used for roofs. It has the characteristics of light weight, high strength, rich color, convenient and fast construction, earthquake resistance, fire prevention, rain resistance, long service life, and maintenance free.

Galvanized sheet is a steel plate coated with zinc. Galvanizing is an economical and effective preservative method that is often used. About half of the world's zinc production is used in this process.
Galvanized steel plate is to prevent corrosion on the surface of the steel plate to prolong its service life, coated with a layer of metal zinc on the surface of the steel plate, the zinc coated steel plate is called galvanized plate.

The standard-making party is different from that A36 is the material of American standard ASME standard (equivalent to ASTM specification), SS400 is the material of Japanese standard JIS G3101 (rolled steel for common structure), and Q235 is the material of national standard GB700. GB700: Q235 JIS G3101: SS400 ASME: A36