Document 4bxZom7wdpeXNg1ZKJDkEp8V

PLAINTIFF'S EXHIBIT (' SOUTHWESYER,C INDUSTRIAL CONTRACTORS AND RIGGERS, INC. 7155 Industrial Avenue P.O.Box 1611 (9151 779-3931 El Paso. Texas 79943 April 4, 1977 H. H. Robertson Company Ambridge Division 14th Street Ambridge, PA 15003 ATTN: Hr. D. 1. Haney Gentlemen: ' -> Enclosed, find H. H. Robertson drawings Nos. G1, EG1A, EG2, EG3 and EG4. The above sheets are "Approved as Noted". We have also enclosed El Paso Smelting Works (ASARCO) drawing no. 7052, showing existing conditions at the Pipe Gallery in the roof of the Converter Building, This information will allow you to figure roofing and siding for the Pipe Gallery and Closure at intersections with Convertor Building roof. Note that we have put "hold" on East and West End Walls, as Closure Steel for .this area is as yot not installed. Also enclosed find Southwestern Industrial Contractors and Riggers, Inc. drawing no. E5, showing penetrations in Convertor Building Roof to support the roof walkway steel. H. H. Robertson drawing no. EG5 will be returned after existing conditions and details have, been verified-. In the future, please submit four sets of shop drawings, stamped "For Approval Only" to our office. If you have any questions on the corrected drawina, please call Mr. H. E. Wickes or myself. Very truly yours. AM/js Enclosures as stated A. Hiller Project Engineer