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SALINE, Mich., October 29, 2014 – R&B Plastics Machinery, LLC, a leading engineering and manufacturing supplier of blow molding machines, single-screw extruders, and rebuild and upgrade [...]

There are basically three Coefficients of Friction (Figure 1) that take place in the feed section of the screw, (1) between the barrel and the pellet, (2) between pellet to pellet, and (3) [...]