Yaya tsawon riguna masu hana harsashi ke wucewa?

Makamai mai laushi: shekaru 5-7 (bayyanannun UV da gumi suna lalata fibers).

Hard faranti: 10+ shekaru (sai dai idan fashe ko lalace).

Koyaushe bincika ƙa'idodin masana'anta don ƙarewar.