Semi betri ea motlakase e sebetsang ka stacker e sebelisoa ntlong ea polokelo kapa setshelo, thepa e tsamaeang le ea stacker. Mofuta ona oa semi ea motlakase o ka bolokang mosebetsi o mongata, o ka tšela sebaka se moqotetsane haholo 'me ho bonolo ho o tsamaisa hohle.
1. Ts'ebetso ea ho emisa maoto a ho paka
2. Moralo oa ketane ea ho tsamaisa koloi
3. High frequency bohlale tjhaja
4. Fereko ea letsoho e feto-fetohang
5. E ka atolosa leoto la fereko ho ea ka boholo ba pallet ea hau
6. E ka khetha fereko e ferekaneng.