1. doubel z-arm, rotation with different speed 2.mechanical seal, no oil leakage 3. jacket for cool or heat is optional General ... the pharmaceutical, chemical, foodstuff industries, etc.Working Principle: The double Z-shaped oars stir to make the material to-and-fro ... .4-0.8451531900SCH-8008000.4-0.64518.532100 ARM MIXER & Z-ARM BLENDER