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Classification of steel pipes
Steel classification method is varied, the main method has the following seven: 1, according to the quality of classification (1) ordinary steel (P 0.045% or less, S 0.050% or less) (2) the high quality steel (P, S are 0.035% or less) (3) the high quality steel (P 0.035% or less, S 0.030% or less...Read more -
Anti-corrosion function of color coated steel plate
Color coated steel plate is also called organic coated steel plate or pre-coated steel plate. As a continuous production method for coils, color steel plates can be divided into two methods: electro-galvanized and hot-dip galvanized. At the same time, electro-galvanizing is a method of making gol...Read more
