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★Qimei Water Engineering QMZM178 corundum microporous aerator (brown corundum sand, high-temperature sintered, dome type) (Model QMZM178); Collection notes: Evidence: the "Technical Parameters" table on the manufacturer's official website www.qmzm.com.cn (site name: Yixing Qimei Water Engineering Plastics Co., Ltd.; address: Gaoting Foreign Investment Industrial Park, Yixing City, Jiangsu; E-MAIL: web@qmzm.com.cn; Tel: 0510-87892458), on the product page "Home > Aeration World > Corundum Microporous Aerator", with the table header "Aerator Specifications QMZM178/QMZM215/QMZM250/QMZM300"; the values in this entry are transcribed row by row from column 1 of that table (working air flow rate/design air flow rate/service area/oxygen utilization rate/oxygenation capacity/compressive strength/flexural strength/acid and alkali resistance, weight loss in acid-alkali 4-8%). Tier designation digits include; Data source: http://www.qmzm.com.cn/ProductDetail/4974828.html. Main products: microporous aerators; representative models: QMZM178, QMZM215, QMZM250, QMZM300.

Business scope: Upstream · Water Affairs › III. Biochemical Treatment › Aeration Equipment › Corundum/Ceramic Microporous Aerators.