亚洲女初尝黑人巨高清,欧美jizzhd精品欧美,婷婷四虎东京热无码群交双飞视频,亚洲精品无码不卡

Under the driving force of the active shaft, the loaded cylinder undergoes cyclic compound movements such as translation, rotation, and rolling, promoting the material to move in three directions along the cylinder, thereby achieving the mutual flow, diffusion, accumulation, and doping of various materials, and achieving the goal of uniform mixing. Used for high uniformity mixing of powder and granular materials in pharmaceutical, chemical, food, light industry, electronics, machinery, mining, national defense industry, and various scientific research institutions.