China 4Ton to 20Ton SWL Alloy Snatch Blocks:Forged alloy hooks and shackles heat treated for toughness.Interchangeble hook and shackle connector options.Available with bronze bushing, composite bushing o roller bearing.Captured attaching pin ay nagbibigay-daan sa maginhawang reeving habang nakasuspinde ang block.Mas malalaking sheaves. at WLL magagamit kapag hiniling.