Photo taken on May 15 shows customs officers inspecting a 4,000-meter truck-mounted drilling rig at the Nanyang Wolong Comprehensive Bonded Zonein Nanyang city of Central China's Henan province. The same day, a convoy of more than 30 vehicles carrying petroleum equipment cleared customs at the bonded zone before heading to the Horgos port for onward transport to Aktau, Kazakhstan. (Text: Henan Daily Photo: Henan Daily)
