Okay, the user wants me to translate "c-spanner" into Arabic. Let me check what "c-spanner" refers to. It's a type of wrench, specifically a C-shaped spanner used in plumbing or mechanics. In Arabic, the term for a wrench is "مفتاح" (miftāḥ). The C-shaped part might be described as "مفتاح C" or "مفتاح شكل C". However, I should confirm if there's a standard term for "c-spanner" in Arabic technical contexts. Maybe "مفتاح C" is the direct translation and commonly used. Since the user's instruction is to translate, and the original isn't in Arabic, I'll go with "مفتاح C" as the translation.