Crane double hook 1- Capacity: 1- 600t 2- Pulley: 1- 12 pulley ... overhead, gantry cranes and all kinds hoist, Crane hookdouble hook for overhead crane, gantry crane, or hoist etc ... Please kindly contact us for more details of your required hook blocks. hookfor crane usecapacity: 1- 250tstrength grade: M, ... or DG30Cr2Ni2Mo, more than 40t with DG30Cr2Ni2Mo.Model:Single hook: 5t/6t/10t/12t/16t/20t/25t/32t/ ...