Guests pose for photos in front of the first SITRAK duty truck during the off assembly line ceremony at the China National Heavy Duty Truck Group (CNHTC) Jinan Commercial Vehicle Co. Ltd, in Jinan, capital of east China's Shandong Province, Jan. 17, 2013. As advanced heavy duty truck produced by CNHTC in cooperation with MAN Truck & Bus AG from Germany (MAN), the SITRAK duty truck was off assembly line on Thursday. [Xinhua]