... oxide.300-550PP,PA,ABS+ ferrous powdersulphuric powderceramic powder400-600Functional machine pelletsPP,PA,ABS,PBT, etc+ anti-burning agent and other ... is made of stainless steel and is with sight glass or peep hole. 4) Test the fusing temperature of the materials ... screw extruder SHJ-75A co-rotating parallel twin screw extruder/machine for color/filler masterbatch