Tsis-suction

Peb cov khoom tseem ceeb yog drywall sander, tov khoom thiab lwm yam khoom siv kho kom zoo nkauj hauv tsev.Peb nruj me ntsis tswj txhua yam khoom hauv kev tsim, kev sim thiab kev tsim khoom, lav qhov siab nruab nrab ntawm qhov zoo tshaj plaws.