Empty Trailer For Metro Express Tram Transport Extendable Trailer This empty trailer is extendable and splicing model. It is specialized used to transport metro tram or express tram. The following photos shows that the empty trailer we made were loading and transporting trams. Please don't reprint without permission of images published in this site. In China, only our factory can manufacture empty trailer for tram transportation. Please feel free to contact us when you need this extendable trailer. Please feel free to contact us if you buy metro express tram transporter. Only our factory can offer the empty trailer in China.