Our company produces square and rectangular steel tubes in a full range of sizes: square tubes from 20*20 to 600*600, rectangular tubes from 20*30 to 400*800, with wall thicknesses from 1.5mm to 32mm, totaling over 2,800 specifications. Materials include Q355B, Q355C, Q235, S275JOH, S355JOH, Q460, Q550, S275JR, S355JR, S355J2H, ASTM A500 square tubes, British standard square tubes, seamless square tubes, large diameter thick-walled square tubes, and square-rectangular tubes. We also offer customized services based on customer-provided drawings and dimensions.

Seamless steel tube materials include: Q345D, Q345B, Q345C, Q345E, Q355B, Q390B, 20#, 10#, 20#, 35#, 45#, 20#3087, 20G5310, Q345B, Q345C, Q345D, Q345E, 16Mn, Q355B, Q355C, Q355D, Q355E, 27SiMn, 20CrMo, 30CrMo, 35CrMo, 42CrMo, 20Cr, 30Cr, 40Cr, 15CrMoG, 12Cr1MoVG, 20CrMnTi, 37Mn5, 45Mn2, 40Mn2, 15CrMo, 12Cr1MoV, 1Cr5Mo