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Calvin Group, Inc.


Calvin Group's Lifelong Passion for Paving Equipment Keeps On Growing

Mark Pentz, president of Calvin Group Inc. , remembers telling his father, "I'm gonna sell big iron when I grow up." His father would adamantly reply, "No, you're not. You are going to get a professional job." But that never stopped Pentz....







39.04690 \\ -77.49030 \\ Ashburn \\ PA