Steel Joint Ningbo Yinzhou Juncou Electrical Fittings Factory Base Info Standard：DINMaterial：Medium Carbon SteelConnection：WeldingDesign：Produce According to Customer′s Drawing.Origin：Zhejiang, China Description Pre：Carbon and Alloy Steel Hex Bolt (DIN 931) Next：Flat/Countersunk Head Self Tapping Screw (DIN7982)
