금속필터는 메쉬 형태의 여과망을 5겹으로 압착/소결하여 제작되었으며, 여과망의 기공은 5 µm을 적용하였다.
The metal filter was fabricated by pressing/sintering the mesh-type filter net in 5 layers, and the pores of the filter net were applied by 5 µm.