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151. Usage: Mainly used in the production of fused salt electrorefining aluminium , corundum , enamel , refractories and other alumina chemical products, meanwhile it can also used in paints area.

152. Ordinary PS plate aluminum base, alumina layer and photographic adhesive layer.

153. Our main products are Silicon Carbide, Alumina Ceramic, Tungsten Carbide, and Carbon - Graphite Seal Rings.

154. I plant of the chromium oxide , alumina ceramic coating and has a tungsten carbide metal-resistant coating wear, corrosion resistance, high temperature, and other fine performance.

155. Alumina is a common carrier for catalysts. A alumina can be prepared by spray drying process.

156. A new kind of bi-supported metal catalysts was prepared by using columniform alumina and acrylon and Pd.

157. The invention provides a method for preparing a polymerization catalyst. The method comprises contacting a carrier comprising alumina with a sulfating agent and with chromium.

157. Sentencedict.com try its best to gather and create good sentences.

158. The aluminium based composite reinforced by alumina Borate Whisker was prepared by squeeze casting method.

159. The manufacturing principle and shortcomings of common unfired high alumina bricks have been analyzed.

160. By access to information, determination methods of alumina are mainly including chrome azurol S method and aluminon method.

161. The hardness of black silicon carbide is greater than fused alumina but less than synthetic diamond.

162. Compared with the alumina pillared montmorillonite, the pillared saponite exhibited higher cracking activity and better thermal stability.

163. The Industry - Standard Activated Alumina Desiccant Is Used Extensively In Compressed Air Dryers.