... field, project of natural gas transmission from West to East China, Gas transmission from Shangxi province to Beijing .Our ... exported to Russia, America, Australia, Germany and the Mid East. Tianjin Lida changji Technology Development Co., Ltd. Tianjin Lida ... reputation,widely used-Russia, America,Australia, Germany, Mid East5.International standards-CNPC SY/T-2007, NACE,ANSI/AWWA6.Cooperation-CNPC ...