The blackening treatment of U-shaped bolts has the following detailed requirements for appearance: 1. The appearance of black treatment is blue, black or dark black. 2. The film crystal is dense and uniform, the product ...
U-shaped bolts are moisture-proof, and U-shaped wire manufacturers should take the following measures: 1. Choose impregnating paint without oxidizing components, such as epoxy alkyl or unmodified epoxy impregnating paint...
The nut is troublesome after rust removal, so what is the best way? Let's take you to understand: 1. Choose a suitable special wrench, a suitable open-end wrench or a torx wrench, so that you will not slip your hands dur...