AK500-OE-11-2.5-R AK500-OE-11-2-R AK500-OE-12-6F AK500-OE-12-6F-R AK500-OE-12-9F AK500-OE-12-9F-R AK500-OE-12-NP-6F-R AK500-OE-12-NP-9F-R AK500-OE-13-6F AK500-OE-13-6F-R