The surface of SPCC is not maintained and is very easily oxidized when exposed to gas, especially in wet and cold conditions. It has red rust, should be in the application of the whole process of painting, plating process or other safeguards.

hot dip galvanized coil steel refers to the semi-finished product processing after pickling passivation or hot rolling. the machined metal is cleaned by water, quenched, infiltrated into a molten zinc bath at about 460 ℃, and then galvanized on the steel, this is followed by tempering and a flow of calm organic chemistry is carried out. SGCC raw materials are harder than SECC materials, lower plasticity (to prevent deep drawing design), thick zinc layer, and weak electric weldability.

is one of the commonly used stainless steel plates, because nickel (Ni) included in nearby sheet metal processing enterprises is more corrosion resistant and high temperature resistant than steel containing magnesium (Cr). It has good physical properties, no heat treatment process and hardening, and no ductility.

The chromium (Cr) content is less than SUS304, and the corrosion resistance is poor. However, after cold drawing, good tensile strength and strength can be obtained in the whole process of die casting, and the ductility is excellent. It is suitable for torsion springs and EMI.