HOUSTON--(BUSINESS WIRE)--The auto industry has discovered 3D printing can help it make parts (and even entire cars) cheaper, lighter and faster. Changing Technologies, Inc. (OTCBB: CHGT) stands ready to help manufacturers take full advantage of the ever-growing technology through its 3D printing portal, printing services and consulting expertise. “When it comes to the automotive industry, 3D printing is about to shift into a higher gear,” said CHGT CEO Marco Valenzuela. “Considering how many p


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