This part of GB/T 10051 stipulates the type, size and technical requirements of straight shank single hook blanks. This Part is applicable to die forging and free forging straight shank single hook blanks for hoisting machinery specified in GB/T 10051.1.
GB/T 10051.4-2010 Referenced Document
GB/T 10051.2 Lifting hooks.Part 2:Technical conditions for forged hooks
GB/T 10051.4-2010 history
2011GB/T 10051.4-2010 Lifting hooks.Part 4:Blanks of shank hook with point
1988GB/T 10051.4-1988 Lifting hooks--Blanks of shank hook with point