Sida Garage Door Torsion Springs soo saaraha, waxaanu ku siinaynaa Torsion Springs 1.75 "iyo 2" dhexroor ee cabbirro badan oo silig ah oo u dhexeeya 0.207, 0.218, 0.225, 0.234, 0.243, 0.250, 0.262 to 0.272.Dhammaan Torsion Springs-yadayada waxa laga soo saaray silig-xajis sare leh, oo saliid leh, oo la kulma ASTM A229.
Tilmaamaha caadiga ah:
(1) 0.225 in. cabbirka siliga x 2 in. ID x 27 in. L oo leh midab cas
(2) Xadhkaha gu'ga oo kacsan iyo saliid ku shidan
(3) Lagu qiimeeyay 10,000 ilaa 15,000 wareeg