Apollo best bloom and Appollo-keystone copper steel galvanized sheets . Vandergrift Works. Vandergrift, Pa., largest sheet mill in America, and one of our twenty-eight modern plants. Apollo Galvanized Sheets possess exceptional forming qualities. Three leading features of Apollo Galvanized—strength, adaptability, durability. 16 im^mma .-I POLLO-KE YSTONE waff PITTSBURGH Galvanized Sheets, Keystone Copper Steel is a scientific and correct combination of copper and high gradesteel, thus forming a new metal or copper-steel alloy. This Com-pany has given much thought and expense in its efforts to
Apollo best bloom and Appollo-keystone copper steel galvanized sheets . Vandergrift Works. Vandergrift, Pa., largest sheet mill in America, and one of our twenty-eight modern plants. Apollo Galvanized Sheets possess exceptional forming qualities. Three leading features of Apollo Galvanized—strength, adaptability, durability. 16 im^mma .-I POLLO-KE YSTONE waff PITTSBURGH Galvanized Sheets, Keystone Copper Steel is a scientific and correct combination of copper and high gradesteel, thus forming a new metal or copper-steel alloy. This Com-pany has given much thought and expense in its efforts to raisethe standard of durability and service to the highest degree. Aftercareful research work, together with exhaustive tests and experi-ments, it has been fully established that the greatest resistance tocorrosion and rust resulting from exposure to atmospheric con-ditions, or the action of the elements, is secured from a copper-steel alloy as in our Keystone quality.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjec, booksubjectmetalwork
