On June 5th, 2015, OST and Northwest Research Institute Co., Ltd of C.R.E.C. Jointly held technical exchange symposium. Representatives participating ...
On June 4th, 2015, OST and Power China Northwest Engineering Corporation made technical exchanges in Xi’an. The participants discussed in depth on hi...
On May 9, 2015, former director of Geological Survey Bureau of India, now Chief Geologist of Bhilwara Group and Vice-President of IAEG Asia, Yogendra ...