Hex High Tensile Bolt SAE J429 Grade8, Material: 40Cr, From Ningbo S&D Metalwork Co.,Ltd, www.sendingmetalwork.com
https://www.cncmachingparts.com/
Jiesheng Hardware located in QiaotouTown Dongguan city Guangdong Province, now we has all kinds of imported machines, CNC computer lathe , computer processing center, precision automatic lathe, screw machines.