Yog, lawv yog customizable heev. Cov neeg tsim khoom tuaj yeem kho qhov kev pom tseeb (feem ntau yog li ntawm 1 txog 300 microns), qhov ntev, thiab cov qauv kev teeb tsa (xws li tubular, disc, lossis pleated duab). Ntau hom kev sib txuas, suav nrog threaded, flange, thiab cov qauv sib txuas, kuj tuaj yeem raug kho kom haum rau cov kev cai tshwj xeeb.
