SL Series 8c Well Rotary Drilling Swivel for Rig

SL Series 8c Well Rotary Drilling Swivel for Rig. The Hook Block includes a traveling block and a hook, it can be used to lifting drill string when in drilling situation. Its housing assembly is made of thick section steel plate and wire rope is kept taut when hoisting or lowering the unload block. It also can be used to eliminate accidents during slight pipe-sticking and touching resistance.