tower bolt 1.Material: Steel 2.Finish: color zinc plated 3.Model Size:70mm 4.Package:10 piece/inner box, 24 boxs/carton steel tower bolt1.Material: Steel2.Finish: color zinc plated3.Size:30mm,40mm,50mm,70mm,4.Package:10 piece in a inner box,24 boxs/carton Our advantage:1. 6 years experiences in steel tower bolt as manufacture 2. Professional R&D center and excellent management team 3. Reasonable ...