... , if filters fast without contaminating and with good heat and chemical stability . The ... 1-core ,3-core , 5-core , 7-core , 9-core , 11-core , 13-core , 15-core . The length of folded filter core has ... .The filter core has two types ,there are hydrophilcity (suitable for liquid) hydrophobicity (suitable for hydrophobicity) , ... core specification 10 , 20 , 30 , 40 Mpa working pressure 0.1-0.6 oC working ...