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Plaub thiab rau qhov chaw ob peb kab cua sov mantle rau kev kuaj
Cov Khoom Piav Qhia Plaub thiab rau qhov chaw muaj ntau txoj kev ua zaub mov sov hauv tsev kawm ntawv, kev ua noj ua haus, petrochemicals engineering thiab kws tshuaj ntsuam kev lag luam rau cov kua. Cov yam ntxwv: 1. Txias dov daim ntawv ncab thiab txau sab nrauv. 2. Hauv qhov ntsuas kub cov qauv, stosepless ceev tau kho tau, tsis zoo rau qhov kub thiab txias thiab muaj kev nyab xeeb. 3.H ...