http://www.stes.tyc.edu.tw/xoops/
Using Hook Locks to Secure the Contents of Your Van Hook locks are an excellent way to improve the security of your van. They're simple to install and operate independently from the main lock on your van. Gunnebo Industries (now Crosby) created the self-locking hook to enhance the safety of construction sites. The hooks snap shut under pressure and prevent falling or grabbing onto overhead lines. and accessories by using these locking hooks that attach to loop wire hooks to prevent theft. These hooks are compatible with HandiWALL slatwall or other comp