紙漿燒(shao)結濾芯 折疊(die)式(shi)微孔(kong)膜過濾芯 蜂房(fang)式(shi)線(xian)繞過(guo)濾(lv)芯 空氣(qi)過濾(lv)芯(xin) SB系列管(guan)道(dao)過(guo)濾器 瑞達脈沖褶式濾(lv)筒(tong) 瑞達高效脈沖除塵 12NEXT