Document km49G5pGgGqwEDXO1Ny8z8Qdq

X 4* USE OP HLtJS FIBER {CROCIDOkXTB} April 5, 196J Blue fiber was imported into the United State* at least at early as 19IS. Government publications for that year show that 1184 tons were imported. Johns-Manvilie has used blue fiber in only two of it* product lines: {!> asbestos-cement pipe, and (2) packings (this includes sheet, braided, cops. and cloth-type product*) . The use of blue fiber in ashestoe-cement pipe-In vstested in the Waukegan, Illinois plant in 1929-34. With regard to packings, our records show that blue fiber vaa used In sheet packing in 1929. Me can find no record* which verify an earlier use of blue fiber in our packings. We have not used blue fiber In insulations to oar knowledge. bcc: S. Speil W. Streib E. Fenner A. C. Smith Library 7. L. Fundsack f WV-04635