Lub Rooj Sib Tham Txog Kev Siv Tshuab thiab Khoom Siv Petroleum thiab Petrochemical Thoob Ntiaj Teb Zaum 25 tau xaus rau hnub tim 25-28 Lub Peb Hlis hauv Beijing City. WEIFANG FAR EASTERN MACHINERY CO., LTD tau qhia txog nws lub peev xwm, ua rau muaj kev xav zoo kawg nkaus.
Lub sijhawm tshaj tawm: Plaub Hlis-07-2025