BF121-12-A-0-L-C BF121-12-A-1-L-C BF121-14-A-0-L-C BF121-14-A-1-L-C BF121-16-A-0-L-C BF121-18-A-0-L-C BF1211ER BF1211R BF1211R,215 BF1211R+215