... Hot-dipped galvanized,thermal spraying zinc 3.220kv-500kv 4.As your requirement Shandong Huaheng tower Co., Ltd,founded in 2000, ... specialized in the power tower,steel pipe tube tower,communication tower,steel structure and so on.It is an ... and according to your requirement3,Products angle tower\single pipe tower\ electric single pipe tower and so on4,Surface CoatingHot-dip galvanizing ...