 MINNEAPOLIS--BUSINESS WIRE--Nortech Systems Incorporated Nasdaq: NSYS the Company, a leading provider of engineering and manufacturing solutions for complex electromedical and electromechanical products serving the medical, aerospace defense and industrial markets, reported net sales of 22.1 million for the quarter ended March 31, 2021, a decline of 19.6 compared to 27.4 for the first quarter of 2020. The decline was primarily due to COVID-related factors including supply chain 