The chimney tower construction garden should be clean and tidy, with ventilation steps, and the content of harmful gases should not be higher than the demarcated requirements. Flammable materials used in the anti-corrosion of the ...
Angle bar, also known as “L-bar”, “L-bracket” or “angle iron, is a metal in the form of a right angle. Steel angle bar is the most widely used structural steel by the construction industry because of its very economical cost. Structural steel ...