exhibit 2. 1 equity purchase agreement by and among magnetic seal llc, ducommun labarge technologies, inc., mag parent, inc. and thomas b. colby and lyman j. colby exhibit 2. 1 equity purchase agreement by and among magnetic seal llc, ducommun labarge technologies, inc., mag parent, inc. and thomas b. colby and lyman j. colby dated as of december 15, 2021