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.
This video shows the process for removing the old unusable bolts and replacing them with new wedge anchor bolts in preparation for receiving a new Delphi Speaker Post