450kg Shuttering Magnet is one small type of precast concrete magnets, which features size of L170x60x40mm, but performed over than 450kgs adhesive force. It's the very idea magnetic system for holding shutter profiles on PC construction side table, fixing with a steel adptor. The special button designs make it much more convenient to reveal by a handy tool.
The whole surface of steel shell and button, srews were treated with black oxidation from rusty, which will prolong the durable working life of this type magnetic system. Apart from this, the cased neodymium magnets covered with black epoxy material to protect from getting rust and breaking down.