GB/T 10051.8-2010
起重吊钩 第8部分：吊钩横梁毛坯件
Lifting hooks - Part 8: Blanks of cross pieces for hooks
2011-01-10
GB/T 10051.6-2010
起重吊钩 第6部分：直柄双钩毛坯件
Lifting hooks - Part 6: Blanks of ramshorn shank hooks
2011-01-10
GB/T 10051.4-2010
起重吊钩 第4部分：直柄单钩毛坯件
Lifting hooks - Part 4: Blanks of shank hook with point
2011-01-10