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|ISO/TC 184/SC 4/WG 12||STEP product modelling and resources||C|
|ISO/TC 184/SC 4/WG 15||Digital manufacturing||C|
|ISO/TC 184/SC 4/WG 21||SMRL Validation Team||C|
Liaisons A: Organizations that make an effective contribution to the work of the technical committee or subcommittee for questions dealt with by this technical committee or subcommittee.
Liaisons B: Organizations that have indicated a wish to be kept informed of the work of the technical committee or subcommittee.
Liaisons C: Organizations that make a technical contribution to and participate actively in the work of a working group.