hat
3. kat-kolòn ak kolòn gid raje ak lwil oliv santral founi automatical lubrifiants sistèm yo ak pwòp tèt lubrifiants kote yo pote ant aks pwensipal yo ak aks baz, ki kapab pwolonje vivan sèvis pou machin.
eng
3. Four-column and column guide bush with central oil supply automatical lubricating system and self-lubricating bearing between the main axle and axle base, which can prolong the service life of machine.