彩神ll用户登录 The U-shaped steel Supports ship this time is a hot-selling product of our group. It has obtained the national utility model product patent certificate. The product has been improved and innovated on the basis of the original steel bracket, and can be better applied to mine tunnels and mine tunnels. Support and support for mountain tunnels have many advantages such as high pressure, long support time, easy installation, and non-deformation, and can reduce the use of pit wood, high recycling and reuse rate, and obvious environmental protection benefits. Since the product is put on the market Has been widely praised by customers at home and abroad.