CertainTeed Corporation Pipe and Plastics Group PO Box 860 Valley Forge, PA 19482 CertainTeed El September 14, 1977 TO: All District Managers All Territory Managers All Customer Service Managers All Valley Forge P&PG Personnel All Sales Engineers , FROM : J.

TECHNICAL SPECIFICATIONS CertairileedH T.C.O.

To~Nam & Dtpartrr ;nt S LISTED vi--Name & Dapirtm.nl .v.

Crane Co. 1977 Annual Report Fluid and Pollution Control Steel .

WHAT IS ASBESTOS?

Mr.

INTERROGATQRYJjQ, 43: Based upon the material contents of your asbestos-containing products, the method of. manufacturing, and the method of application, can such products be generally applied without liberating asbestos fibers into the air?

fir* - ST0084348 II .

PLAINTIFF'S EXHIBIT DUP-990 Decamber 26, 1975 N.

I warn** omumi GXZBOUS&.PA.1MI MONDAY.

July 19, 1979 TO: J.

KV Ml E.

DSIal 0 1 6 9 7 9 This product contains polychlorinated bi phenyls, which some studies have shown may be an environmental contaminant.

beet cit BRADFORD PX, SLAYTOK - 1650 October 11, 1971 Mr.

I C.