PLAIN BAND RING RECOMMENDED DESIGN RG-AI-0525 RG-AN-0186 RG-AN-0326 RG-AN-0541 RG-WR-0066 RG-WS-0142 RG-AI-0526 RG-AN-0190 RG-AN-0527 RG-AS-0271 RG-WR-0247 RG-WS-0150 RG-AN-0148 RG-AN-0261 RG-AN-0528 RG-AS-0529 RG-WR-0248 RG-WV-0096