999精欧美一区二区三区黑人,一区二区三区久久人妻蜜桃,欧美国产精品二区三区区,免费在线观看毛片视频网站,欧美亚洲视频在线看

The mixer mainly used homogeneous mixture with PVC, all kinds of resins and other plastic materials. It mixes and dyes the grain burden of PE, PP and other plastic materials, to dry the hygroscopicity resin forming the type before processing it. The mixer is absolutely necessary supplement equipment in the front production line of the plastic production factory.