... , CECS 80:2006, 3.GB 50205-2001, GY5071-2004 Communication Tower 1. Features :1.Anti- wind speed:25- 35m/s2 ... factor 4 times2.Specifications :Four-pipe tower, angle steel tower, single-tube tower, three Tara tower, tower H rod, floor beautify the landscape ... holds pole tower, combinations hold pole and so on ...