Kev tshuab viscometers yog kev tshuab pab ntau uas sau ceev tias dab tsi zoo li cas nyob rau hauv ib qhov chaw. Qhov no hu ua viscosity. Piv txwv li, kab mob yog nyob ntawm thaum lub zog yog nyob rau hauv. Tus paub tias dab tsi zoo li cas nyob rau hauv ib qhov chaw feem ntau yooj yim rau hauv kev lag luam uas muaj feem xyuam nrog cua, kev sib khom thiab kev kho mob. Nyob rau ZONWON, peb tsim cov Viscometers uas pab rau kev lag lag luam kom meej tias lawv cov duab plhaub zoo rau lawv yuav tsum tau los ntawm lawv. Thaum siv cov cuab yaj no, kev lag lag luam tuaj yeem kom meej tias lawv cov khoom yog nyob rau hauv kev nyab xeeb thiab muaj peev xwm.