Roll threading is a very efficient method of manufacturing threads on bolts and other fasteners. Learn the benefits and limitations of this popular technique from one of the experts at Portland Bolt: Kailey Tillman.
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.