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.
AJAX Fasteners SMART BOLT – is a direct tension measuring system where the actual tension developed in bolt tightening can be measured and monitored directly over time. The measurement is with +/- 1% of actual bolt tension.