MRA0207 178K B 15PPM TA MRA0207 178R B 15PPM TA MRA0207 17K4 B 15PPM TA MRA0207 17K8 B 15PPM TA MRA0207 182K B 15PPM TA MRA0207 182R B 15PPM TA MRA0207 182R F 50PPM TR MRA0207 18K2 B 15PPM TA MRA0207 18K7 B 15PPM TA MRA0207 191R B 15PPM TA