3、ctToday's social economy is more developed, more advanced technology, people is not just satisfied with the problem of food and clothing, they began to enjoy life, life has different requirements, and even travel transport months with each passing day. The requirements of the road transport faciliti
4、es increased accordingly. Bridge is required of it as a hub linking the two sides or ordinary people transport facilities with changing times and also become more and more.Chinanowhasabout500,00bridgesinmanykinds,andthenmorethan10,000seatsbridgehadbeenstartofconstructioninoneyear.Previously,Chinajus