When the steel plates come out of the steel mills, they come in rolls, and the steel plates that have been leveled by the machine are called "Open hand board."  The internal stress level of open plates is higher.

Advantages of Open hand board:  

First, the price is cheap and the length can be decided freely;  

Two, convenient transportation, do not consider according to the size of the open hand board;  

Three, easy to cut, can be according to the actual need of open hand board size cutting;  

Four, can effectively save materials.