Changzhou Shuangma Medical Devices Co.,Ltd is located in eastern suburb of Changzhou,near Shanghai City.We are modern enterprise specializing in producing disposable medical instruments.Shuangma is always devoted to developing and innovating hardwa

our company is called Hangzhou Duoyuan Building Material Com.,Ltd.,located in city , which paradise China.here you can enjoy a lot of natural scenery places and the famous for The West Lake .and I am secerely hope will visit our some day .if have chance  to come to China . Our an ...