Magnet fishing uses a strong magnet to try and grab ferrous metal objects that are hidden or lost underwater. If you want to try grabbing something lost on the bottom of a lake, pond, or river, a magnet on a rope might do the trick.
Concrete walls with slight uneven surface pose a great challenge to standard adhesive, the 0.4mm foam thickness of 3M VHB 4920 allows the adhesive surface to “mould” in to the peaks and valleys of concrete surface for maximum grip.
Ningbo Bestway Magnet Co. Ltd. is a professional and high-tech company which is committed to research, manufacture and develop of Rare Earth Magnet since 2000 located in Ningbo, China.