... ISO9001:2000,CE,EN779 certification. 3,low resisitance,high capacity. 4,3-D net structure,dust-holding ... Ankelin manufacture super-thin fiber filtering media with high quality and excellent technical.1, As a ... high melting point (167-174)°c, and stable functions.4, Good oil-immersing and heat-protecting performance and good water ... from all over the world! Mask filter medium-high efficiency Melt media