外国一级AⅤ在线观看_久久精品視频久久人人_日本人又色又爽视频看看_久久久久久免费A

The NH120 double-tapered roller mixer uses two tapered rollers to crush and mix the abrasives, which can effectively eliminate the rolling and heating of the materials during the rolling process. The mechanical transmission adopts the worm gear method, and the large worm wheel made by aluminum-based rare earth alloy material, which has good wear resistance and durability.