Celotex Corporation, Cohart Refractories,eagle-picher Ind.,inc., General Refractories Company, A.p. Green Refractoriescompany, Harbison Walker Refractories Di v. of Dresser Ind.,international Vermiculite Co., Keene Corp., Nicolet Ind.,owens-illinois, Inc., Pittsburgh Corning Corp., Quigley Co.,inc., a Subsidiary of Pfizer, Inc., Raymark Ind., Inc.,f/k/a Raybestos- Manhattan, Inc., Anchor Packing Co.,bethlehem Steel Corp., a C and S, Inc., F/k/a Armstrongcontracting and, 862 F.2d 869 (4th Cir. 1988)