STO-41T-187N-8 STO-41T-187N-8(FS4.8B-1.25-8) STO-41T-187N-8(PB) STO-41T-187S STO-41T-197N STO-41T-250N STO-41T-P1.1 STO47N60M6 STO-50T-187 STO52N60DM6