7. Westinghouse: spare parts for OVATION system, WDPF system and MAX1000 system.
8. Invensys Foxboro: I/A Series system, FBM (field input/output module) sequence control, ladder logic control, accident recall processing, digital analog conversion, input/output signal processing, data communication and processing, etc. Invensys Triconex: redundant fault-tolerant control system, Zui modern fault-tolerant controller based on triple module redundancy (TMR) structure.