产品特征：

    ·标准结构特点 Standard Construction Features

     聚酯纤维Polyester

 ·性能表述 Performance Description

    宽褶距，易清灰没汁Wide pleat spacing,easy- cleaning design

    特有螺旋内网，外保护边帯Inner helix mesh, outer support band

    高效过滤 High filtration efficiency

    顶部开口，底部开口/封底/底部小孔 Top open, bottom open,bottom close, bottom close withdeflating   bolt hole

    镀锌金属Galvanized metalo

    橡胶圈密封Rubber seal