374 S.E.2d 116 (1988)
323 N.C. 620
PROCESS COMPONENTS, INC.
No. 244PA88.
PROCESS COMPONENTS, INC.
v.
BALTIMORE AIRCOIL CO., INC.
No. 244PA88.
Supreme Court of North Carolina.
December 8, 1988.William D. Acton, Jr., and Frank B. Aycock, III, Charlotte, for plaintiff-appellee.
Moore & Van Allen by Charles E. Johnson, and Greene & Michael by Robert J. Greene, Jr., II, Charlotte, for defendant-appellant.
PER CURIAM.
AFFIRMED.