introduction to shi blockade is superior performance
source : jun and the lock
time : 2015-07-03
pv:
as we all know, with the constant improvement of the economic level, the development of public utilities, such as railway harbour also is in a flourishing trend. however is due to the current economic more and more developed, society began to become more complex, also to the security of public goods has become a problem to worry. in such a social background, the application of shi blockade is necessary. shi blockade is a kind of the floorboard of the railway industry to seal products, as long as after the blockade cannot open, with a very effectively guarantees the national security. shi blockade has now with its superior performance, widely used in railway, port, aviation and other industries, can effectively play the role of guard against theft insurance.