Lub Rooj Sib Tham Txog Kev Siv Tshuab thiab Khoom Siv Thoob Ntiaj Teb Thoob Ntiaj Teb Zaum 23 ntawm Tuam Tshoj

Tus 23^rdTuam Tshoj Thoob Ntiaj Teb Petroleum & Petrochemical Technology thiab Khoom Siv Exhibition

tau ua tiav zoo kawg nkaus hauv Beijing, ua tsaug rau peb cov neeg siv khoom rau lawv qhov kev lees paub ntawm peb qhov zoo thiab kev pabcuam.

Peb yog koj tus neeg muag khoom ncaj qha hauv Suav teb. thiab txais tos koj tuaj xyuas Wuhan Ninestones.