Crane hook block 1 Capacity: 1- 600t 2 Pulley: 1- 12 pulley, 3 ... use Capacity: 1- 250t Strength grade: M, P, S, T, V grade Materials: M grade with DG20, or DG20Mn P grade ... 40t with DG34CrMo, more than 40t with DG34CrNiMo or DG30Cr2Ni2Mo V grade below 40t with DG34CrNiMo or DG30Cr2Ni2Mo, more than 40t ... /32t/40t/50t/63t/80t/100t/125t/160t/200t/250t. Block model: 3.2t/ 5t/10t/16t/20t/25t/32t/50t ...