Manufacturing Company Takes Shelby Township Location In Its Quest For Expansion Written By Christine Thomas Colonial Plastics, a manufacturer of plastic injection molding for prototype and production, signed for 50,000 square feet in the industrial building at 51734 Filomena Dr. in Shelby Township, MI. The single-story industrial facility was constructed in 2001 on two acres in the Groesbeck North Industrial submarket. Colonial Plastics will occupy the entire complex. Colonial Plastics is a sector under Colonial Group, which is also affiliated with Colonial Mold, Inc. and Colonial Consulting, Inc. The company offers several molding supplies such as 2 shot molding, medical injection molding, precision injection molding, assembly (both manual and robotically) and automotive molding, to name a few. According to CoStar, the company also occupies the industrial building on 44479 Reynolds Dr. in Clinton Township, MI. The company will be the only tenant occupying the Shelby Township location.