Application: U-channel steel support is mainly used for the secondary support of mine tunnel and the mine tunnel of the mountain tunnel. Model: 40u Material: 20MnK Specification: single beam, double beam, treble beam, grade beam Characteristic: High initial support, strong support strength, easy installation and not easy deformation; high cross section utilization and small maintenance; the recycling rate is high, the use of timber is reduced and the environmental benefit is obvious.
