100 square light steel keel wall how many pieces of heaven and earth keel
Heaven and earth keel accurately depends on the length of the wall, the dragon than the dragon multi-hole size. Usually can be doubled the length of the wall to remove the door. Vertical spacing is usually 400, the door has to strengthen the vertical keel, wearing a keel to see the height of the wall, you can 1, but also two. Depending on the specific design. If the height of 3m, heaven and earth keel to 67m-several door size.
It depends on how high you need to partition the wall, if it is separated by 2 meters high wall, then up and down the world keel each need 50 meters. , If it is separated by 4 meters high wall, up and down the world keel each need 25 meters.