在线二区人妖系列_熟妇乱子伦视频在线观看_avの在线观看不卡_久久久影院亚洲午夜

center distance: 120mm、220mm

Twin screw kneader is used for producing high strength paper with various raw materials such as straw, bulrush , cotton stem , popular and haulm. The equipment combines bleaching, washing and pulping functions. Simplifies the pulping process and can accomplish low energy consumption and cleanly pulping.