VTM Factory VTM kits with flocked swab for sample collection. About us_VTM Factory Cell medical (Dongguan) Co., Ltd., is a professional manufacturer of  VTM kits , more than 10 years of experience in medical application molding and flocked treatment heads and swabs. Our flocked swabs are famous for their stable and reliable performance and excellent … Continue reading VTM Factory VTM kits with flocked swab for sample collection