Who are the bridge beam manufacturers in Beijing?

Hot dip galvanized cable tray manufacturers can produce hot dip galvanized cable trays. Hot dip galvanized cable tray is a kind of steel metal cable tray, which is generally made of cold-rolled steel, similar to Q235A cold-rolled steel. Different from ordinary cable bridge, the bridge surface has three layers of protective film. The first layer is a carbon oxide film generated by the reaction between zinc and air, the second layer is a pure zinc metal layer generated by the adhesion of molten zinc, and the third layer is a zinc-iron alloy layer generated by the contact between molten zinc and iron matrix at high temperature. Ordinary galvanized cable tray can be produced by most cable tray manufacturers now, but only cable tray manufacturers that can carry out hot dip galvanizing process can produce it.

In recent years, Beijing's environmental protection efforts have been increasing, and relevant policies and systems have been introduced one after another. The heavily polluted steel and related enterprises have been forced to move out of the surrounding areas of Beijing. Cable bridge production enterprises also belong to traditional heavy pollution enterprises, especially the hot dip galvanizing process, which pollutes the environment seriously. Because the whole electroplating process of hot-dip galvanizing process is carried out at high temperature, NH4Cl in the plating aid is easy to decompose and volatilize when heated, resulting in a large amount of irritating gas and NH4Cl smoke, which will seriously pollute the environment, and zinc will continuously evaporate, resulting in a large amount of zinc vapor, which is harmful to human health.