Flat recess former which is a removable recess former when it cast in precast concrete with anchors.
It builds a recess on the anchors head to let lifting clutch set in. The recess will let lifting clutch to lifting the precast
concrete. So the flat recess former and the lifting clutch head will match enough well. The flat recess former will fix
to form-works by former panels which have thread and nut.
There are rubber and plastic two kinds of materials. It can reuse many times.