Due to the presence of galvanized layer on its surface, galvanized square tube faces a series of unique process difficulties during the welding process, and also puts forward higher requirements for quality control.
Due to the presence of galvanized layer on its surface, galvanized square tube faces a series of unique process difficulties during the welding process, and also puts forward higher requirements for quality control.
In the field of modern construction, rectangular building iron pipe square tube is an important structural material.