AOP Precast manufactured certificated wire lifting clutch (ring clutch) with high strength 35CrMoV steel materials to well transport precast concrete. The wire lifting clutch head is identical to lifting clutch. The hook change to wire loop from lifting clutch. The wire lifting clutch loop is high strength wire swage into aluminum ferrules. It will be tested one by one after we complete swage to check the wire loop quality. There have manufactured certificated and load tons show on the wire lifting clutch tags.