The 2-Minute Rule for اكتشاف المعادن
تعرف على أفضل اجهزة تصوير باطن الارض واستخداماتها المُختلفةThe metallic detectors were being initial invented and made commercially in The usa by Fisher Labs during the 1930s; other businesses like Garrett set up and produced the metallic detectors with regard to technological know-how and options