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ahmed-shaker-34058196
Question added by ahmed shaker, فنى لحام, بترومنت - 8 years ago

كيف يمكن ان تكتشف عيوب الماتريال اثناء لحامه ؟

Welding

Arc Welding

Answers:
29
Followers:
31
Views:
100
Vote Count:
4

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