Ebe a na-ekpo ọkụ ma na-emenyụ isi iyi torsion na-ekpo ọkụ na mmanụ, isi iyi zinc-galvanized na-edobe usoro galvanization na-ekpo ọkụ.Usoro a na-agụnye iminye mmiri nchara n'ime vat nke zinc a wụrụ awụ na oke okpomọkụ.Ọtụtụ ndị mmadụ na-ahọrọ isi iyi torsion nke nwere zinc-galvanized n'ihi na ha na-eguzogide nchara na corrosion na-enweghị atụ.
Kedu ka esi elele ebe nchekwa ọnụ ụzọ Torsion Springs?
Iji hazie iwu gị maka Garage Door Torsion Springs, biko nye ozi ndị a gbasara mmiri ọ bụla:
(1) N'ime dayameta
(2) Oke waya
(3) Ụzọ ikuku mmiri
(4) Ogologo mmiri