Building materials industry, all kinds of pipes to carry out the situation is different, Q345 manganese plate because of the characteristics of itself, the connection between the pipe and there is a certain distance. Square tube, which is one of so many pipes in the building materials industry. Is formed after strip by processing, all kinds of characteristics of steel pipe needs you to understand, but in the building materials industry, all kinds of pipes to carry out the situation is different, because of the characteristics of itself, the connection between the pipe and there is a certain distance. Square tube, which is one of so many pipes in the building materials industry. Is formed after strip by processing, all kinds of characteristics of steel pipe needs you to understand, but actually because of raw materials such as steel pipe connection, is about steel pipe storage needs certain conditions.