Cov Bable Sampler yog ib qho tshwj xeeb rau daim ntawv thiab ntawv los ntsuas cov dej nqus dej nqus thiab roj permeability ntawm cov qauv qauv. Nws tuaj yeem txiav cov qauv ntawm cov qauv loj. It is an ideal auxiliary test instrument for papermaking, packaging, scientific research and quality supervision and inspection industries and departments.