Public Hearing on the Proposed Tender Offer to the Copperweld Corporation by Societe Imetal: Hearings Before the Subcommittee on Labor Standards of the Committee on Education and Labor, House of Representatives, Ninety-fourth Congress, First Session ... Held in Glassport, Pa., and Shelby, Ohio, September 12, 1975, and Warren, Ohio, September 13, 1975