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الآن تُعرض المواد 1 -- 2 من 2

STUDY OF THE POSSIBILITY OF PREPARATION OF THERMITE WELDING FOR THE RIAL RODS FROM IRAQI ORES.

HANNA, S.E. ET AL. (2007)

PREPARATION OF SODIUM SULPHIDE FROM SODIUM SULPHATE USING PETROLEUM COKE

HANNA, S.E. ET AL. (2002)