1.安装后离地面6mm厚，180度设计和同类产品比较更加不易绊脚；
2.打开使用盖板直接放到地面 防止了因盖板高所造成的事故隐患和产品损坏。
3.材质:铜合金、不锈钢

1. After being installed,it keeps 6mm thick from the floor has design toward 180degree
and is not apt to stumble compared with similar products.
2. When it is opened for use,the cover plate is directly put on the floor to prevet the
hidden danger and product damage for the elevation of cover plate.
3. Material:Copper alloy,Stainless steel