The K200 armored personnel carrier is the first troop transport armored vehicle developed by Korea, and we have developed hydraulic oil filters locally and are currently supplying them to Hanwha Aerospace. We have all the test equipment for quality certification, and in 2016, we obtained the DQ mark certificate from the Korea Defense Technology Quality Institute to certify our quality. It has low pressure loss, high filtration efficiency, and no damage even at minus 32℃ and 150℃.