全国发货天海钢管型号 主要尺寸 Φ H L R R1 A OT-10A 5.2 6 14.5 4.5 2 0.8 OT-20A 6.2 7 17 5.5 2.5 1 OT-30A 6.2 8.2 19 5.8 3.2 1.2 OT-40A 6.2 9 19.5 6.2 3.5 1.2 OT-50A 6.2 9 23 6.5 3.5 1.2 OT-60A 8.2 10 2. 7 4 1.4 OT-80A 8.2 11 25 8 4.5 1.5 OT-100A 8.2 12 29 8.5 5 1.5 OT-150A 10.2 12 31 9 5.5 1.6 OT-200A 10.2 14 33 10 6 1.7 OT-250A 10.2 15.5 36 10.5 6.5 2 OT-300A 12.2 16 40 11.5 7 2 OT-400A 14.2 18 43 13 8 2.2 OT-500A 14.2 20 46 14.5 8.5 2.4 OT-600A 16.2 22 50.5 16 10.5 2.8 OT-800A 18.2 26 61 17.5 12.5 3.2 OT-1000A 18.2 33 66 20.5 15.5 3.8
