/ 2019 Vietnam Energy Mining Technical Equipment Exhibition will be held in Hanoi International Convention and Exhibition Center,/ 2019 Vietnam Energy Mining Technical Equipment Exhibition will be held in Hanoi International Convention and Exhibition CenterFeatures,/ 2019 Vietnam Energy Mining Technical Equipment Exhibition will be held in Hanoi International Convention and Exhibition CenterParameter,/ 2019 Vietnam Energy Mining Technical Equipment Exhibition will be held in Hanoi International Convention and Exhibition CenterPrice-Shandong Lvbei Energy Saving Environmental Protection Equipment Manufacturing Co., Ltd