S???i?n tho?i: Nh?p chính xác s???i?n tho?i ?ang s??d?ng ??????c nh?n thông tin nhanh nh?t.This unit group involves staff who sell products or solutions all through residence demonstrations or by phone soliciting, retail exhibitions or street vending.We've decided to Display screen a blank part using this Take note, as a way to aide readability.