Dị ka Garage Door Torsion Springs emeputa, anyị na-enye Torsion Springs na 1.75 "na 2" dayameta na otutu waya nha sitere na 0.207, 0.218, 0.225, 0.234, 0.243, 0.250, 0.262 ka 0.272.A na-emepụta mmiri mmiri Torsion anyị niile site na waya mmiri dị elu, mmanụ ọkụ, na-ezute ASTM A229.
Atụmatụ ọkọlọtọ:
(1) 0.225 in. waya nha x 2 inch. ID x 27 in. L nwere koodu agba uhie uhie
(2) Waya mmiri na-ekpo ọkụ na mmanụ ọkụ
(3) Edere ya maka okirikiri 10,000 ruo 15,000