News/ Picture news

  • Updates on Jiuzhaigou relief work-OST curtain-type protecting net demonstrates military product quality

  • Earthquake Hit Jiuzhaigou--OST Sent Staff for Relief Work

  • A delegation from China Railway Construction Cooperation visited

  • CCTV News: OST Birds Protection Fence Draws Attention

  • Responding to The Belt and Road, OST Obtained Pre-orders from Malaysian Projects