Shanxi Jianlong successfully develops American Standard boron-containing cold heading steel 10B21

Recently, Shanxi Jianlong put boron-containing cold heading steel wire 10B21φ6.Asian Metal Copyright8-level inner hexagonal high-strength bolts.Asian Metal Copyright5mm, φ8mm and φ10mm on the market, which was successfully used in the production of 8.Asian Metal Copyright5mm, φ8mm and φ10mm on the market, which was successfully used in the production of 8.Asian Metal Copyright8-level inner hexagonal high-strength bolts.
.Asian Metal CopyrightRecently, Shanxi Jianlong put boron-containing cold heading steel wire 10B21φ6Asian Metal Copyright