MCE混合纖維素酯濾膜 VSWP02500 MF-Millipore親水表面濾膜，MCE，0.025um,25mm VSWP01300 MF-Millipore親水表面濾膜，MCE，0.025um, 13mm 25nm微孔濾膜VSWP04700 DNA蛋白質(zhì)微量透析
