PERMA-DENT FOUNDATIONS

PERMA-FINISH INC

PERMA-FLEX ENGINEERING

PERMA-FLEX MOLD CO

PERMA-FLEX ROLLERS INC

PERMA-FLEX SOUTHERN INC

PERMA-LINER INDUSTRIES

PERMA-PIC CO

PERMA-PIPE/RICWIL

PERMA-RAIL INTL