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أحمد-صبحى-حسنى-ابوعزيزة-28283315
Question added by أحمد صبحى حسنى ابوعزيزة, مهندس زراعى, عدد من الاماكن والشركات - 9 years ago

ماهى الغازات والعوامل التى تسبب اختراق الاوزون ؟

Industrial Gases

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