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National Gypsum Company is a company based in Charlotte, North Carolina, that produces drywall gypsum boards in the US. It has 17 gypsum board plants in the US and presents itself as a fully integrated building products manufacturer. It is a private company, incorporated as New NGC, Inc. in 1993.
Spray Products Corporation is a Plymouth Meeting, PA-based company in the Manufacturing sector.
Clayton Products is a Fenton, MO-based company in the Manufacturing sector.
Detrex Corporation is a Southfield, MI-based company in the Manufacturing sector.
Annie Oakley Enterprises is a Ligonier, IN-based company in the Manufacturing sector.