Cargo Lock Planks are always made by aluminum and steel.
It's usually by length of 2400mm~2700mm,the aluminum track is combined by two seperate tracks and on each end there is a F clip.
We have two major kinds of F clips,one is by stamping and another one by forged.
Please check the details on product pages and if you are of any interested,contact us and we guarantee you a very fast&effective reply.
Thank you!