San Marco Tower crane assembly with overview of how climbing system works.
Follow the link below to find San Marco tower cranes for sale:
https://www.bigfootcrane.com/tower-crane/tower-cranes-for-sale/
website:https://www.jhmindustry.com/
Shanghai Jian & Mei Industry and Trade Co., Ltd. is the company which manufacture and export fasteners and metal hardware, founded in 2006, with import-export authority. Now, 80% products export to all over the world and 20% sell in domestic market.