State Manufacturing Data. Economic conditions can vary widely by U.S. state and region. The NAM's data on economic conditions and manufacturing by state provide the information manufacturers in America need to make critical inventory, production and business plans.
About Chelsea, Michigan. Chelsea, Michigan is a thriving small city in southeastern Michigan with an abundance of shopping, dining, entertainment, and local activities. Over the years, Chelsea has evolved into a diverse community, embracing its agricultural heritage, maintaining an active manufacturing base, and cultivating a vibrant art scene.
Chelsea Filter The Chelsea filter is a dichromatic filter which transmits two wave lengths only - in the red region at 690nm and the other in the yellow region at 570nm. The presence of the elements chromium or cobalt in a gemstone makes it appear red when viewed through this filter.