Hex High Tensile Bolt SAE J429 Grade8, Material: 40Cr, From Ningbo S&D Metalwork Co.,Ltd, www.sendingmetalwork.com
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.