1.Appearance patent

• Nut caps for replaceable anchor bolts  ZL202230624457.5
• Anchor bolt plug  ZL202030759734.4

2.2、Invention Patent

• A replacement fixture and method for anchor bolt nut cap, anchor bolt cage, and anchor bolt fracture  ZL202211152620.8

3.Utility model patent

• A type of packaging steel strip operation fixture  ZL202022929982.6