Chapter VI
Reading edition
“The Business Message of the Wrought Iron Bar,” Interstate Iron and Steel Co., Chicago.
“The Control of Quality in Every Process,” A. M. Byers Co., Pittsburg, Pa.
Reading edition
“The Business Message of the Wrought Iron Bar,” Interstate Iron and Steel Co., Chicago.
“The Control of Quality in Every Process,” A. M. Byers Co., Pittsburg, Pa.