3087中空锚杆天津大中空锚杆
GB3087中空锚杆 22-28X2.5-4-6
32-38-40X3-4-6-8
42-48X3.5-4-5-8-10
GB3087中空锚杆 51-60X3.5-5-6-7-9
76-89X4.5-6-8-10-12
108-133X5-6-8-10-12
159-168X7-8-10-14-18-26
194-219X6-8-12-铸铁26-38
GB3087中空锚杆 2铸铁273X10-12-14-16-22-15-40
325-355.6X11-14-16-20-30-40
377-426X11-14-16-20-25-40-铸铁BR>铸铁.2-508X14.2-17.5-22-铸铁52
GB3087中空锚杆 530-558.8X16.8-60-70
船舶专用管 中空锚杆