生产与销售。3R精密滤芯; TR-20270,TR-20370,TR-20470,TR-20230,TR-20330,TR-20430,TR-27570,TR-20540,TR-20510,TR-20560,TR-20530,TR-20520,TR-25250,TR-25350,TR-25450,TR-20580,TR-20550,TR-20512,TR-20000,TR-20515,TR-20450,TR-25470,TR-25480,TR-28000,TR-21200,TR-21000,TR-21461,TR-20101,TR-20125,TR-20201,TR-20225,TR-26500,TR-26800,TR-26810,TR-26820,TR-26830,TR-26840,TR-26850,TR26900,TR-26910,TR-26920,TR-26930,TR-26940,TR-26950,TR-21900,TR-21910,TR-21910,TR-21920,TR-21930,TR-21940,TR-21950,TR-21800,TR-21810,TR-21820,TR-21830,TR-21840,TR-21850,TR-22630,TR-22650,TR-22670,TR-22690,TR-22700,TR-22710,TR-22283,TR-22285,TR-22287,TR-112221,TR-112225,TR-112311,TR-112312,TR-112331,TR-112332,ME30,ME32,ME50,ME100,WG100,E30-H114,E50-H114,E100-H114,