جهاز كاشف المعادن والذهب OPTIONS

لن يتم نشر عنوان بريدك الإلكتروني. الحقول الإلزامية مشار إليها بـ *The most typical variety of steel detector is really a hand-held metallic detector or coil-dependent detectors making use of oval-shaped disks with designed-in copper coils. The research coil performs as sensing probe and need to