A seven-shaped iron frame cable bracket L type is a type of bracket used to support and secure cables in various applications. It is made of iron and has a seven-shaped design, Metal Frame with an L-shaped extension. The L-shaped extension provides additional stability and support for the cables. This type of bracket is commonly used in electrical and telecommunications installations to organize and protect cables. Cold rolled steel sheet is the abbreviation for carbon structural steel cold rolled sheet. It is made of carbon structural steel hot rolled steel strip, which is further cold rolled into a steel plate with a thickness of less than 4mm. Due to rolling at room temperature without producing oxide scale, the cold plate has good surface quality and high dimensional accuracy. In addition, Metal Sheet annealing treatment results in better mechanical and technological properties than hot-rolled thin steel plates. The commonly used grades are low-carbon steel 08F and 10 # steel, which have good cutting and bending properties. 2) Continuous electro galvanized cold rolled steel sheet Continuous electro galvanized cold rolled steel sheet, Mild Steel Plate also known as "electrolytic plate", refers to the process of continuously depositing zinc from a zinc salt aqueous solution to a pre prepared steel strip under the action of an electric field on the electro galvanized operation line to obtain a surface galvanized layer. Due to process limitations, the coating is relatively thin