... used for feeding, mixing, coloring and drying of various resins, PVC, polyethylene and polypropylene SRL series plastic mixing ... resistant & heat-resistant sealing .Heating mixer has self-friction . Its heating type is electric or steam heating .It's not easy for ... mainly used for feeding, mixing, coloring and drying of various resins, polyethylene, polypropylene and PVC, etc. It can ...