Galvanized Steel Composite Panel is mainly used in automobile, household appliances, construction, machinery, electronics, light industry and other industries. Galvanized steel composite panel has two methods: electrogalvanizing and hot-dip galvanizing, which are subdivided. Galvanizing is divided into single-sided, double-sided and differential thick coatings, while hot-dip galvanizing has no single-sided and differential thick coatings, but hot-dip galvanizing is divided into galvanizing and zinc-iron alloy, while electroplating has no zinc-iron alloy. Electropaneld coatings extend to electroplating zinc, electroplating nickel, electroplating tin and electroplating chromium, and the extension of hot galvanizing is more, including hot galvanizing, zinc-iron, aluminum-zinc, zinc-aluminum and zinc-aluminum-magnesium, etc.

Appearance of galvanized steel composite panel:

Surface state: due to the different treatment methods in the coating process, the surface state of galvanized steel composite panel is also different, such as ordinary zinc flower, fine zinc flower, flat zinc flower, no zinc flower and phosphatized surface, etc. German standards also stipulate surface grades.

Galvanized steel composite panel shall have good appearance and shall not have defects harmful to product use, such as no plating, holes, cracks, scum, excessive plating thickness, scratches, chromic acid dirt, white rust, etc. Foreign standards are not very clear about specific appearance defects. When ordering, some specific defects should be listed in the contract.

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