Cov saw tsav yog tsim los ntawm cov tsav thiab tsav sprockets mounted rau ntawm qhov sib npaug ntawm cov ncej thiab cov saw hlau, uas thaiv cov sprockets.Nws muaj qee tus yam ntxwv ntawm txoj siv tawv thiab iav tsav.Ntxiv mus, piv nrog txoj siv sia tsav, tsis muaj elastic zawv zawg thiab plam ...
Nyeem ntxiv