Also known as the sleeper plate circuit. It is a prestressed concrete sleeper plate, which is laid in a compacted bed, and the wires are filled with asphalt or other materials. The prestressed concrete sleeper plate is 55cm wide and twice as wide as the normal prestressed concrete sleeper, with the same length and thickness as the ordinary prestressed concrete sleeper (see color map). Therefore, the contact area between the wide sleeper and the daoist bed doubles the contact area between the normal sleeper and the daoist bed, thus reducing the pressure on the bed
New Car Buying Tips--
new car registrations
why do new cars smell good
new car prices 2014 usa
how to get a new key for a car
car hire in new zealand
Copyright ?1998-2017 Technews Corp, All rights reserved
|