Folding ladder hinge, big ladder hinge, small hinge ladder Steel material
1) high quality with low price
2) use as hinge for multipurpose ladder
3) auto locking 
4) Main material: steel 
5) Max. working load: 150kg
6) Weight: 1.06kg
7) Thickness: 2.0mm 
aluminum ladder parts ladder hinges
silver oxidization surface treatment. .
used in ladders.
can be choiced by your request

best quality jinhua aluminium folding ladder locking hinge parts