Naylor Pipe Co.
Nemato Composites Inc.
Power Plant Supply Company
Powrmatic of Canada Ltd.
Reinforced Plastics Systems Inc.
Retterbush Fiberglass Corp.
Richard Goettle, Inc.
Roof Products & Systems Corporation
Rupp Industries Inc.
Sasco Tubes and Roll Forming Inc.
Seneca Environmental Products
Senior Flexonics (Canada) Ltd.
Southeastern Metals Manufacturing Co., Inc.
Southwark Metal Mfg.
Spirax Sarco Canada Ltd.
Spiro Metal Tube Inc.
Stetson Building Products, Inc.
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