1.polishing grade calcined alumina 2.al2o3: 99.5%min 3.we are a factory and exporter polishing grade calcined aluminaQingdao Huierde International Trade Co., Ltd, founded in 2009. is a leading manufacturer and supplier of products such as aluminum oxide, aluminum hydroxide, refractory...

1.refractory grade calcined alumina 2.Al2O3: 99.5%MIN 3. granularity:2-3um 4. we are a factory and exporter Qingdao Huierde International Trade Co., Ltd, founded in 2009. is a leading manufacturer and supplier of products such as aluminum oxide, aluminum hydroxide, refractory...

1.ceramic grade calcined alumina 2.Al2O3:99.8%min 3.usage:high temperature porcerlain 4.we are a factory  ceramic grade calcined alumina Al2O3ceramic grade calcined alumina Al2O3 Qingdao Huierde International Trade Co., Ltd, founded in 2009. is a leading manufacturer and...

1.sandy metallurgical alumina for aluminium smelters 2.Al2O3 content:98.6%min 3.we are a factory and exporter sandy metallurgical alumina for aluminium smelters Qingdao Huierde International Trade Co., Ltd, founded in 2009. is a leading manufacturer and supplier of products such...