... ,20μmGround JointSS316LJTFA02156-branch300ml GlassPTFEPTFE,20μmGround JointSS316L JTFA0206 Glass Filter Holder300ml glass funnel, Glass support screen, Silicon stopper, Clamp Brief instruction Multi ... time. At present domestic laboratory filtrate liquid usually adopts the glass nature core, while this method only filtrate one sample once ...