RKM 50-5M RKM 50-6M/S1551 RKM 5-293/10 M RKM 5-293/15 M RKM 5-293/2 M RKM 5-293/20 M RKM 5-293/25 M RKM 5-293/5 M RKM 5-506/10 M RKM 5-506/15 M