How to do the aging and corrosion of the screw
21 Sep 2019
Screws and zinc coatings during transportation often appear white, black, black,...
Stainless steel knowledge summary
30 Sep 2019
1, stainless steel definition Stainless steel is a high-alloy steel that resists...
How to take high-strength bolts after breaking?
09 Oct 2019
In the process of using bolts during construction, bolt breakage often occurs. I...
About the status quo of the Japanese screw industry
12 Oct 2019
On October 20th, the annual five-region screw association meeting was held at th...