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Specifications
ISRI **1 No. 1 : Heavy melting steel 3 feet x *8 inches. Wrought iron and/or steel scrap 1/4 inch and over in thickness, individual pieces not over *6 inches x *8 inches (charging box size) prepared in a manner to insure compact charging.
ISRI **2 No. 1 : Heavy melting steel 5 feet x *8 inches. Wrought iron and/or steel scrap 1/4 inch and over in thickness. Individual pieces not over *0 inches x *8 inches (charging box size) prepared in a manner to insure compact charging.
ISRI **3 No. 2 : Heavy melting steel.* Wrought iron and steel scrap, black and galvanized, 1/8 inch and over in thickness, charging box size to include material not suitable as No. 1 heavy melting steel Prepared in a manner to ensure compact charging.
ISRI **4 No. 2 : Heavy melting steel.* Wrought iron and steel scrap, black and galvanized, maximum size *6 x *8 inches. May include all automobile scrap properly prepared.
ISRI **5 No. 2: Heavy melting steel 3 feet by *8 inches. Wrought iron and steel scrap black and galvanized, maximum size *6 x *8 inches. May include automobile scrap properly prepared, however, to be free of sheet iron or thin-gauged material.
ISRI **6 No. 2: Heavy melting steel 5 feet by *8 inches. Wrought iron and steel scrap black and galvanized, maximum size *0 x *8 inches. May include automobile scrap properly prepared, however, to be free of sheet iron or thin-gauged material.