سر PVA بخش مهمی از MOP است.نوع دوم نوع فشار غلتکی است.However, when mopping the floor, the contact area is larger, and the mopping is cleaner and labor-saving 1. Features of PVA mop: The cleaning head of mop made of PVA (polyol) sponge mop has super water absorption capacity, which is ده برابر به اندازه اسفنج معمولی.