Kev txiav txim los ntawm lub lim tiam no, kev lag luam pib yuav tsum tau txhim kho, kev txhawb nqa ntawm cov khoom siv yog txwv, qee cov neeg siv tau rov ua haujlwm ntxiv, thiab kev ua lag luam yuav thiab muag tau sov.Jiangsu Suopu, Shandong Yankuang cog tau rov ua haujlwm li qub, thiab Sinopec Ningxia Neng ...
Nyeem ntxiv