The specifications of square tubes and rectangular tubes produced have a full size of 20mm * 20mm--600mm * 600mm square tubes, 20 mm* 30mm--400mm * 800mm square tubes, with a thickness of 0.6mm --28mm and over 2800 specifications;
Material: Q235, Q345B, 20 #, 45 #, seamless pipe, alloy steel;
Customized according to customer requirements.
