亚洲高清夫妻综合网|国产精品无码久久久|久草网在线观看视频|成人在线视频资源|久久自偷拍浪潮av|奇米视频在线777

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.