Fangyuan Multi-deck High Frequency Screen yog siv dav hauv kev npaj thee, hlau thiab cov hlau tsis yog hlau me me. Lub tshuab screen siv kev kho mob tiv thaiv xeb thiab hnav-resistant los ua kom cov khoom siv tiv thaiv kev hnav thiab tiv thaiv xeb thiab ua kom lub neej ua haujlwm ntawm cov khoom siv ntev dua.
