Details, Fiction and كشف المعادن
وضع العملات: يستخدم للبحث عن العملات المعدنية في التربة أو على سطح الأرض.The most common form of steel detector is actually a hand-held metal detector or coil-primarily based detectors working with oval-shaped disks with built-in copper coils. The look for coil functions as sensing probe an