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Description:Product Name: ERW Square Steel Pipes or TubesPlace of Origin: ChinaSpecifications: 1) ERW pipes and tubes: Q235, 215, Q195 2) 13 x 13 - 60 x 60 (0.5 - 4mm) 3) 20 x 20 x (1.2 - 2)mm, 140 x 140 x (4 - 10)mm 4) 30 x 30 x (1.5 - 3)mm, 150 x 150 x (4 - 10)mm 5) 40 x 40 x (1.5 - 4)mm, 160 x 160 x (4 - 10)mm 6) 50 x 50 x (1.5 - 4.5)mm, 180 x 180 x (4 - 12)mm 7) 60 x 60 x (2 - 5)mm, 200 x 200 x (4 - 14)mm 8) 70 x 70 x (2.5 - 5)mm, 220 x 220 x (5 - 14)mm 9) 80 x 80 x (2.5 - 6)mm, 250 x 250 x (5 - 14)mm 10) 90 x 90 x (3 - 7)mm, 300 x 300 x (6 - 14)mm 11) 100 x 100 x (4 - 8)mm, 350 x 350 x (8 - 14)mm 12) 120 x 120 x (4 - 8)mm, 400 x 400 x (8 - 14)mm 13) 130 x 130 x (4 - 10)mm 14) 135 x 135 x (4 - 10)mm