HOUSTON--(BUSINESS WIRE)--Changing Technologies, Inc. (OTCBB: CHGT) continues to feverishly ramp up for further growth in the 3D printing industry as the market for both technology and content hasn’t cooled, but instead gets even hotter. The widely-quoted Wohlers Report forecast two years ago predicted 3D printing would be a worldwide $10.8 billion (USD) industry by 2021. That forecast has now been revised to more than double that amount - $20 billion (USD) – by 2020. Meanwhile, a leading indus
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