But over the next eight years , several setbacks caused the business to shrink from 825 employees to 500 , 400 of whom in Heerlen .
Leo Schunck had started making plans for still further expansion , even going national .
Over the next eight years , several setbacks caused the business to shrink from 825 employees to 500 , 400 of whom in Heerlen .
Leo Schunck had started making plans for still further expansion , even going national .