cartesian_coordinate_space
cartesian_coordinate_space_2d
cartesian_coordinate_space_3d
cartesian_point
catalogue_thread
centre_of_mass
certification
chamfer
chamfer_angle
chamfer_definition
chamfer_offset
change
circle
circular_boss
circular_closed_profile
circular_offset_pattern
circular_omit_pattern
circular_path
circular_pattern
circular_runout_tolerance
class_category_association
class_condition_association
class_inclusion_association
class_specification_association
class_structure_relationship
classification_association
classification_attribute
classification_system
closed_profile
closed_profile_usage
closed_shell
coating_layer
coaxiality_tolerance
collected_item_association
collection_definition
common_datum
complete_circular_path
complex_product
complex_product_relationship
component_placement
composite_curve
compound_feature_in_panel
compound_feature_in_panel_element
compound_feature_in_panel_element_relationship
compound_feature_in_solid
compound_feature_in_solid_element
compound_feature_in_solid_element_relationship
compound_hole
compound_model
concentricity_tolerance
configuration
conical_bottom
conical_surface
constant_radius_edge_round
constant_radius_fillet
constructive_geometric_element
constructive_geometry
constructive_geometry_association
contact_ratio
context_dependent_appearance_assignment
contract
cost_property
csg_model
csg_primitive
curve
curve_appearance
curve_on_surface
curve_set_2d
curve_set_3d
curved_distance_dimension
curved_size_dimension
cylindrical_surface
cylindricity_tolerance