PRK 6/4A BU PRK 6/4A GR PRK 6/4A OG PRK 618/4-S12 PRK 8/44-S12 PRK 8/66 PRK 8/66.11-S12 PRK 8/66.41-S12 PRK 8/66.42-S12 PRK 8/66-S12