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By certification 
The design and manufacture of traveling hook conform to API Spec 8A,8C specifications.
The sheave rope groove goes through quenched processing with wear resistance and long life.
The main components of the hook adopt high tense alloy and get through non-destructive testing. Hook adopts springe and hydraulic dual cushion device to protect tool joint.
The sheave rope groove goes through quenched processing with wear resistance and long life.
The main components of the hook adopt high tense alloy and get through non-destructive testing. Hook adopts springe and hydraulic dual cushion device to protect tool joint.
