wave (worthington armstrong venture), is a joint venture between armstrong world industries, and worthington industries, formed in 1992 to manufacture suspended ceiling systems. today, wave is a global leader in the industry.both parent companies are us based, publicly traded, each with annual sales in excess of 3 billion us$ dollars. wave manufactures and distributes suspended ceiling grid, branded as armstrong, all around the world. wave currently operates seven manufacturing facilities located in; maryland (us), nevada (us), michigan (us), france, spain, uk, and shanghai. wave is headquartered in malvern , pennsylvania , a suburb of philadelphia .

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