Introduction to fasteners
21 Sep 2019
Fasteners are a class of mechanical parts that are used for fastening and are wi...
Use of studs
30 Sep 2019
1, Used in the main body for large equipment, you need to install accessories, s...
Classification of flange bolts
12 Oct 2019
1, Hexagonal head type: one is flat brain, the other is concave brain. 2, Surfac...