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Q345B/C/D/E低合金管 16-18-20-22-28X2.5-4-6
Q345B/C/D/E低合金管 30-32-34-38-40X3-4-6-8
Q345B/C/D/E低合金管 42-48X3.5-4-5-8-10
Q345B/C/D/E低合金管 51-60X3.5-5-6-7-9
Q345B/C/D/E低合金管 76-89X4.5-6-8-10-12
Q345B/C/D/E低合金管 108-133X5-6-8-10-12
Q345B/C/D/E低合金管 159-168X7-8-10-14-18-26
Q345B/C/D/E低合金管 194-203-219X6-8-12-20-26-38-50
Q345B/C/D/E低合金管 245-273X10-12-14-16-22-15-50
Q345B/C/D/E低合金管 325-355.6X11-14-16-20-30-60
Q345B/C/D/E低合金管 377-426X11-14-16-20-25-40-60
Q345B/C/D/E低合金管 457.2-508X14.2-17.5-22-45-52
Q345B/C/D/E低合金管 530-558.8X16.8-60-70
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