Shackle the material and use

The current good shackles are generally made of alloy steel, changing the history of ordinary carbon steel in the past. GB shackles include general lifting shackles, marine shackles and general shackles. Heavier, bulky, generally not installed in the often disassembled position. Select the shackle should pay attention to safety factor, generally 4 times, 6 times and 8 times.

Shackle must be strictly used to comply with the rated load, excessive use and overload are not allowed to use.