Lub lifting saw 4 ceg yog qhov tsim tshiab, los ntawm kev ua haujlwm zoo heev thiab cov khoom siv zoo, kev ua haujlwm ntawm kev nqa saw 4 ceg mus rau tus qauv siab dua. Peb zoo meej rau txhua qhov nthuav dav ntawm lifting saw 4 ceg , lav qhov zoo, thiaj li coj koj cov khoom zoo meej kev paub. Lishenflex yog tus kws tshaj lij Tuam Tshoj lifting saw 4 ceg chaw tsim khoom thiab cov chaw muag khoom, yog tias koj tab tom nrhiav qhov zoo tshaj plaws nqa saw 4 ceg nrog tus nqi qis, sab laj nrog peb tam sim no!