A 30x30x3mm square tube made of S235JR structural steel and cut to your desired size. The square tube with a square cross-section is cut straight at both ends Tubing 20 Ft Price Near Me Mechanical And Structural Steel Square Tubing Tubing 20 Ft Near Me Steel Square Tube, size 30 x 30 mm, thickness 3 mm, hollow steel tube with high corrosion resistance, used in a variety of applications Brand: Evek; Country/Region of Manufacture:Germany; Manufacturer's Number:Does not apply Steel Square Tube - Steel Structural Component For Greenhouse Pipe Length tolerance +/-2 mm