1. Method for recovering vanadium and tungsten from leach solution of waste denitrification catalyst

탈질 폐촉매의 침출용액으로부터 바나듐 및 텅스텐의 회수방법

2. Then, most of the explosion, the penetration of tungsten steel actually penetrated to the end there is no doubt and then hit this concrete block and continued

그런 다음, 폭발, 텅스텐 강철의 침투 대부분의 실제로 의심의 여지가 없습니다 끝으로 침투