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.
Very brief introduction video on Tension-Monitoring Anchor Bolts, it eliminates friction errors of a torque wrench.
For more information on Tension-Monitoring Anchor Bolts visit https://www.techmargrout.com/