... thousands of weeks of high-frequency vibrations per second, so that between the plastic and plastic to produce tens of thousnads ... of times per second hith-speed friction, so that the rapid fusion o plastic together2.Features:Model: hair vibration ... : 1800W-3200WThe scope of application : non-woven face masks,aps,hoe covers,surgical clothes,usiness cards inside pages,nside pages,ect ...