3 legs communication tower types include 3 legs angular steel tower and tubular steel tower. In our factory, we have different workshops processing angular steel and tubular steel. Regular check and maintaince are done to make sure all equipment in good performance. All the 3 legged tower will be applied trail assembly before mass production and hot-dip galvanization. During the trail assembly, we will check the dimension of all parts to make sure all of them accurate and fit. Also, the ladders, platforms, antenna brackets and hand-holes etc. will be properly checked and modified if any question.