seal-plate is as an important constructional platform in zhe construction process,it can both as a protecting plate,also as an important channel for effectivly protect normal construction under ground and the people、object from top to bottom,XueHu central winds well s seal-plate used new construction methods and technology,achieved fast、safe construction.

There exist air leakage phenomena in the original tooth roll labyrinth seal of pellet shaft furnace The new type of disk seal is used to substitute the labyrinth seal and the lubricating system are reformed and the strict operation and maintenance system are established Therefore, the air leakage problem of tooth roll can be dealt wit

Development on sealing gasket of concrete jetting machine rotor;