The webbing sling can be scrapped when meeting the six characteristics after years of use:
a) Surface scratches. During normal use, the surface fibers of the envelope will be scratched. These are normal scratches and will hardly affect the performance of the lifting strap. Attention should be paid to all serious scratches, especially those on the edges. Scratch is different from general wear, it may be caused by the sharp edges when the lifting strap is straightened, and these sharp edges will cause the envelope to be cut.
b) Cut. Any damage to the cuts and stitches on the surface of the envelope can cause serious damage to the integrity of the load-bearing core.
c) The bearing core is exposed.
d) Chemical attack. Chemical erosion can cause the sling to partially weaken or soften, manifested as surface fibers falling off or rubbing off. The chemical attack of the envelope will have a serious impact on the integrity of the load-bearing core.
e) Thermal damage and friction damage. The appearance of the envelope fiber material is very smooth. In extreme cases, the fiber material may fuse together, weakening the performance of the load-bearing core.
f) The end fitting is damaged or deformed.