Various interior shots of asbestos heat insulator factory making large size tubes for high pressure steam pipes. Shots of heat insulators in actual use in the plant. Interior shots of brake lining plant showing men shaping linings, piling them on stacks. CUs of women workers, of stacks of tubes seen from the ends, of blow torch being directed against an asbestos glove, against an asbestos panel. Various MLSs and CUs of man turning out acoustic tiles, of machines. Brief shot of men filling bags with asbestos wool. Shots of various products being turned out including panels and insulators.