Manual permanent magnet crane
  Using Nd-fe-B as the core of the product, the product has smaller volume, stronger lifting force and permanent magnetic force
  Safety factor 3.5:1
  The bottom "V" groove design can hoist the corresponding round steel, steel plate
  It can be used without electricity and saves the trouble of power supply
  Optimized magnetic circuit design makes remanence almost zero
  Professional design makes the product more beautiful
  Surface of sucker should be cleaned to avoid scratch affecting accuracy
  Use ambient temperature at - 40C - 50C, no knocking, in order to prevent magnetic force from decreasing
. After using up the anti-rust oil on the working face to prevent rust corrosion