ISO-10303-21; HEADER; FILE_DESCRIPTION (( 'STEP AP203' ), '1' ); FILE_NAME ('50.8 x 50_66067.step', '2017-04-26T18:04:34', ( '' ), ( '' ), 'SwSTEP 2.0', 'SolidWorks 2016', '' ); FILE_SCHEMA (( 'CONFIG_CONTROL_DESIGN' )); ENDSEC; DATA; #1 = PERSON_AND_ORGANIZATION ( #147, #87 ) ; #2 = AXIS2_PLACEMENT_3D ( 'NONE', #137, #192, #14 ) ; #3 = CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT ( #1, #70, ( #77 ) ) ; #4 = VECTOR ( 'NONE', #207, 1000.000000000000000 ) ; #5 = ADVANCED_FACE ( 'NONE', ( #221 ), #156, .F. ) ; #6 = DESIGN_CONTEXT ( 'detailed design', #17, 'design' ) ; #7 = ORIENTED_EDGE ( 'NONE', *, *, #93, .T. ) ; #8 = EDGE_CURVE ( 'NONE', #214, #99, #131, .T. ) ; #9 = VECTOR ( 'NONE', #88, 1000.000000000000000 ) ; #10 = ORIENTED_EDGE ( 'NONE', *, *, #133, .T. ) ; #11 = DIRECTION ( 'NONE', ( -0.0000000000000000000, -0.0000000000000000000, -1.000000000000000000 ) ) ; #12 = ORIENTED_EDGE ( 'NONE', *, *, #120, .T. ) ; #13 = PLANE ( 'NONE', #2 ) ; #14 = DIRECTION ( 'NONE', ( 0.0000000000000000000, 0.0000000000000000000, 1.000000000000000000 ) ) ; #15 = DIRECTION ( 'NONE', ( 1.000000000000000000, 0.0000000000000000000, 0.0000000000000000000 ) ) ; #16 = DATE_AND_TIME ( #20, #142 ) ; #17 = APPLICATION_CONTEXT ( 'configuration controlled 3d designs of mechanical parts and assemblies' ) ; #18 = APPROVAL_STATUS ( 'not_yet_approved' ) ; #19 = ORIENTED_EDGE ( 'NONE', *, *, #163, .F. ) ; #20 = CALENDAR_DATE ( 2017, 26, 4 ) ; #21 = PRODUCT_RELATED_PRODUCT_CATEGORY ( 'detail', '', ( #211 ) ) ; #22 = ORIENTED_EDGE ( 'NONE', *, *, #93, .F. ) ; #23 = APPROVAL_PERSON_ORGANIZATION ( #46, #157, #215 ) ; #24 = CARTESIAN_POINT ( 'NONE', ( 0.0000000000000000000, 0.0000000000000000000, -1.250000000000000000 ) ) ; #25 = ORIENTED_EDGE ( 'NONE', *, *, #133, .F. ) ; #26 = CC_DESIGN_SECURITY_CLASSIFICATION ( #77, ( #124 ) ) ; #27 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #28 = EDGE_CURVE ( 'NONE', #201, #58, #140, .T. ) ; #29 = CALENDAR_DATE ( 2017, 26, 4 ) ; #30 = DIRECTION ( 'NONE', ( 0.0000000000000000000, 1.000000000000000000, 0.0000000000000000000 ) ) ; #31 = MECHANICAL_CONTEXT ( 'NONE', #33, 'mechanical' ) ; #32 = PERSON_AND_ORGANIZATION_ROLE ( 'creator' ) ; #33 = APPLICATION_CONTEXT ( 'configuration controlled 3d designs of mechanical parts and assemblies' ) ; #34 = ADVANCED_FACE ( 'NONE', ( #153 ), #127, .T. ) ; #35 = LINE ( 'NONE', #189, #37 ) ; #36 = CALENDAR_DATE ( 2017, 26, 4 ) ; #37 = VECTOR ( 'NONE', #167, 1000.000000000000000 ) ; #38 = CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT ( #71, #234, ( #124 ) ) ; #39 = ORIENTED_EDGE ( 'NONE', *, *, #120, .F. ) ; #40 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, 25.39999999999999900, -1.250000000000000000 ) ) ; #41 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, 25.39999999999999900, -1.250000000000000000 ) ) ; #42 = APPROVAL ( #108, 'UNSPECIFIED' ) ; #43 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #44 = FACE_OUTER_BOUND ( 'NONE', #49, .T. ) ; #45 = PLANE ( 'NONE', #193 ) ; #46 = PERSON_AND_ORGANIZATION ( #147, #87 ) ; #47 = DIRECTION ( 'NONE', ( 0.0000000000000000000, 0.0000000000000000000, 1.000000000000000000 ) ) ; #48 = FACE_OUTER_BOUND ( 'NONE', #188, .T. ) ; #49 = EDGE_LOOP ( 'NONE', ( #208, #114, #129, #197 ) ) ; #50 = COORDINATED_UNIVERSAL_TIME_OFFSET ( 5, 0, .BEHIND. ) ; #51 = SECURITY_CLASSIFICATION_LEVEL ( 'unclassified' ) ; #52 = AXIS2_PLACEMENT_3D ( 'NONE', #86, #105, #141 ) ; #53 = ADVANCED_FACE ( 'NONE', ( #122 ), #45, .F. ) ; #54 = LINE ( 'NONE', #171, #218 ) ; #55 = ORIENTED_EDGE ( 'NONE', *, *, #69, .F. ) ; #56 = CALENDAR_DATE ( 2017, 26, 4 ) ; #57 = AXIS2_PLACEMENT_3D ( 'NONE', #136, #67, #209 ) ; #58 = VERTEX_POINT ( 'NONE', #41 ) ; #59 = ORIENTED_EDGE ( 'NONE', *, *, #8, .F. ) ; #60 =( GEOMETRIC_REPRESENTATION_CONTEXT ( 3 ) GLOBAL_UNCERTAINTY_ASSIGNED_CONTEXT ( ( #223 ) ) GLOBAL_UNIT_ASSIGNED_CONTEXT ( ( #213, #110, #162 ) ) REPRESENTATION_CONTEXT ( 'NONE', 'WORKASPACE' ) ); #61 = PLANE ( 'NONE', #112 ) ; #62 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #63 = PERSON_AND_ORGANIZATION ( #147, #87 ) ; #64 = ORIENTED_EDGE ( 'NONE', *, *, #220, .F. ) ; #65 = DIRECTION ( 'NONE', ( -0.0000000000000000000, -0.0000000000000000000, -1.000000000000000000 ) ) ; #66 = CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT ( #94, #164, ( #90 ) ) ; #67 = DIRECTION ( 'NONE', ( 0.0000000000000000000, 1.000000000000000000, 0.0000000000000000000 ) ) ; #68 = LINE ( 'NONE', #230, #168 ) ; #69 = EDGE_CURVE ( 'NONE', #151, #111, #92, .T. ) ; #70 = PERSON_AND_ORGANIZATION_ROLE ( 'classification_officer' ) ; #71 = PERSON_AND_ORGANIZATION ( #147, #87 ) ; #72 = APPLICATION_PROTOCOL_DEFINITION ( 'international standard', 'config_control_design', 1994, #33 ) ; #73 = ORIENTED_EDGE ( 'NONE', *, *, #181, .F. ) ; #74 = MANIFOLD_SOLID_BREP ( 'Boss-Extrude1', #154 ) ; #75 = APPROVAL_DATE_TIME ( #119, #186 ) ; #76 = CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT ( #152, #106, ( #211 ) ) ; #77 = SECURITY_CLASSIFICATION ( '', '', #51 ) ; #78 = LINE ( 'NONE', #27, #219 ) ; #79 = LOCAL_TIME ( 14, 4, 34.00000000000000000, #132 ) ; #80 = EDGE_CURVE ( 'NONE', #201, #214, #54, .T. ) ; #81 = VECTOR ( 'NONE', #11, 1000.000000000000000 ) ; #82 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #83 = APPROVAL_PERSON_ORGANIZATION ( #200, #186, #176 ) ; #84 = DIRECTION ( 'NONE', ( -0.0000000000000000000, -0.0000000000000000000, -1.000000000000000000 ) ) ; #85 = PLANE ( 'NONE', #52 ) ; #86 = CARTESIAN_POINT ( 'NONE', ( 0.0000000000000000000, 0.0000000000000000000, 1.250000000000000000 ) ) ; #87 = ORGANIZATION ( 'UNSPECIFIED', 'UNSPECIFIED', '' ) ; #88 = DIRECTION ( 'NONE', ( 1.000000000000000000, 0.0000000000000000000, 0.0000000000000000000 ) ) ; #89 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, -1.250000000000000000 ) ) ; #90 = PRODUCT_DEFINITION ( 'UNKNOWN', '', #124, #6 ) ; #91 = LOCAL_TIME ( 14, 4, 34.00000000000000000, #222 ) ; #92 = LINE ( 'NONE', #174, #134 ) ; #93 = EDGE_CURVE ( 'NONE', #99, #111, #148, .T. ) ; #94 = PERSON_AND_ORGANIZATION ( #147, #87 ) ; #95 = ADVANCED_FACE ( 'NONE', ( #48 ), #61, .F. ) ; #96 = ADVANCED_FACE ( 'NONE', ( #187 ), #13, .F. ) ; #97 = APPROVAL_PERSON_ORGANIZATION ( #63, #42, #236 ) ; #98 = VECTOR ( 'NONE', #232, 1000.000000000000000 ) ; #99 = VERTEX_POINT ( 'NONE', #226 ) ; #100 = CC_DESIGN_APPROVAL ( #42, ( #90 ) ) ; #101 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, 25.39999999999999900, 1.250000000000000000 ) ) ; #102 = DIRECTION ( 'NONE', ( 1.000000000000000000, 0.0000000000000000000, 0.0000000000000000000 ) ) ; #103 = DIRECTION ( 'NONE', ( -0.0000000000000000000, -1.000000000000000000, -0.0000000000000000000 ) ) ; #104 = ORIENTED_EDGE ( 'NONE', *, *, #170, .T. ) ; #105 = DIRECTION ( 'NONE', ( 0.0000000000000000000, 0.0000000000000000000, -1.000000000000000000 ) ) ; #106 = PERSON_AND_ORGANIZATION_ROLE ( 'design_owner' ) ; #107 = DATE_TIME_ROLE ( 'creation_date' ) ; #108 = APPROVAL_STATUS ( 'not_yet_approved' ) ; #109 = CARTESIAN_POINT ( 'NONE', ( 0.0000000000000000000, 0.0000000000000000000, 0.0000000000000000000 ) ) ; #110 =( NAMED_UNIT ( * ) PLANE_ANGLE_UNIT ( ) SI_UNIT ( $, .RADIAN. ) ); #111 = VERTEX_POINT ( 'NONE', #139 ) ; #112 = AXIS2_PLACEMENT_3D ( 'NONE', #82, #102, #143 ) ; #113 = SHAPE_DEFINITION_REPRESENTATION ( #190, #138 ) ; #114 = ORIENTED_EDGE ( 'NONE', *, *, #80, .T. ) ; #115 = ORIENTED_EDGE ( 'NONE', *, *, #80, .F. ) ; #116 = DATE_AND_TIME ( #29, #177 ) ; #117 = VECTOR ( 'NONE', #65, 1000.000000000000000 ) ; #118 = VERTEX_POINT ( 'NONE', #62 ) ; #119 = DATE_AND_TIME ( #175, #202 ) ; #120 = EDGE_CURVE ( 'NONE', #58, #151, #35, .T. ) ; #121 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, 25.39999999999999900, 1.250000000000000000 ) ) ; #122 = FACE_OUTER_BOUND ( 'NONE', #204, .T. ) ; #123 = ORIENTED_EDGE ( 'NONE', *, *, #155, .F. ) ; #124 = PRODUCT_DEFINITION_FORMATION_WITH_SPECIFIED_SOURCE ( 'ANY', '', #211, .NOT_KNOWN. ) ; #125 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #126 = DIRECTION ( 'NONE', ( 0.0000000000000000000, 0.0000000000000000000, -1.000000000000000000 ) ) ; #127 = PLANE ( 'NONE', #198 ) ; #128 = LINE ( 'NONE', #172, #144 ) ; #129 = ORIENTED_EDGE ( 'NONE', *, *, #8, .T. ) ; #130 = DATE_TIME_ROLE ( 'classification_date' ) ; #131 = LINE ( 'NONE', #206, #178 ) ; #132 = COORDINATED_UNIVERSAL_TIME_OFFSET ( 5, 0, .BEHIND. ) ; #133 = EDGE_CURVE ( 'NONE', #214, #151, #128, .T. ) ; #134 = VECTOR ( 'NONE', #173, 1000.000000000000000 ) ; #135 = EDGE_LOOP ( 'NONE', ( #199, #235, #19, #7 ) ) ; #136 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #137 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #138 = ADVANCED_BREP_SHAPE_REPRESENTATION ( '50.8 x 50_66067', ( #74, #203 ), #60 ) ; #139 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, -1.250000000000000000 ) ) ; #140 = LINE ( 'NONE', #101, #81 ) ; #141 = DIRECTION ( 'NONE', ( -1.000000000000000000, 0.0000000000000000000, -0.0000000000000000000 ) ) ; #142 = LOCAL_TIME ( 14, 4, 34.00000000000000000, #185 ) ; #143 = DIRECTION ( 'NONE', ( 0.0000000000000000000, 0.0000000000000000000, -1.000000000000000000 ) ) ; #144 = VECTOR ( 'NONE', #84, 1000.000000000000000 ) ; #145 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, 25.39999999999999900, 1.250000000000000000 ) ) ; #146 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, 25.39999999999999900, 1.250000000000000000 ) ) ; #147 = PERSON ( 'UNSPECIFIED', 'UNSPECIFIED', 'UNSPECIFIED', ('UNSPECIFIED'), ('UNSPECIFIED'), ('UNSPECIFIED') ) ; #148 = LINE ( 'NONE', #125, #98 ) ; #149 = APPROVAL_DATE_TIME ( #116, #42 ) ; #150 = ADVANCED_FACE ( 'NONE', ( #44 ), #85, .F. ) ; #151 = VERTEX_POINT ( 'NONE', #40 ) ; #152 = PERSON_AND_ORGANIZATION ( #147, #87 ) ; #153 = FACE_OUTER_BOUND ( 'NONE', #195, .T. ) ; #154 = CLOSED_SHELL ( 'NONE', ( #96, #53, #95, #5, #150, #34 ) ) ; #155 = EDGE_CURVE ( 'NONE', #118, #201, #165, .T. ) ; #156 = PLANE ( 'NONE', #57 ) ; #157 = APPROVAL ( #160, 'UNSPECIFIED' ) ; #158 = DIRECTION ( 'NONE', ( 0.0000000000000000000, -0.0000000000000000000, -1.000000000000000000 ) ) ; #159 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #160 = APPROVAL_STATUS ( 'not_yet_approved' ) ; #161 = EDGE_LOOP ( 'NONE', ( #183, #166, #123, #104 ) ) ; #162 =( NAMED_UNIT ( * ) SI_UNIT ( $, .STERADIAN. ) SOLID_ANGLE_UNIT ( ) ); #163 = EDGE_CURVE ( 'NONE', #99, #118, #78, .T. ) ; #164 = PERSON_AND_ORGANIZATION_ROLE ( 'creator' ) ; #165 = LINE ( 'NONE', #43, #4 ) ; #166 = ORIENTED_EDGE ( 'NONE', *, *, #28, .F. ) ; #167 = DIRECTION ( 'NONE', ( -1.000000000000000000, -0.0000000000000000000, -0.0000000000000000000 ) ) ; #168 = VECTOR ( 'NONE', #30, 1000.000000000000000 ) ; #169 = ORIENTED_EDGE ( 'NONE', *, *, #69, .T. ) ; #170 = EDGE_CURVE ( 'NONE', #118, #179, #231, .T. ) ; #171 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, 25.39999999999999900, 1.250000000000000000 ) ) ; #172 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, 25.39999999999999900, 1.250000000000000000 ) ) ; #173 = DIRECTION ( 'NONE', ( -0.0000000000000000000, -1.000000000000000000, -0.0000000000000000000 ) ) ; #174 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, -1.250000000000000000 ) ) ; #175 = CALENDAR_DATE ( 2017, 26, 4 ) ; #176 = APPROVAL_ROLE ( '' ) ; #177 = LOCAL_TIME ( 14, 4, 34.00000000000000000, #224 ) ; #178 = VECTOR ( 'NONE', #103, 1000.000000000000000 ) ; #179 = VERTEX_POINT ( 'NONE', #196 ) ; #180 = APPROVAL_DATE_TIME ( #233, #157 ) ; #181 = EDGE_CURVE ( 'NONE', #179, #58, #68, .T. ) ; #182 = LINE ( 'NONE', #89, #9 ) ; #183 = ORIENTED_EDGE ( 'NONE', *, *, #181, .T. ) ; #184 = CC_DESIGN_DATE_AND_TIME_ASSIGNMENT ( #227, #107, ( #90 ) ) ; #185 = COORDINATED_UNIVERSAL_TIME_OFFSET ( 5, 0, .BEHIND. ) ; #186 = APPROVAL ( #18, 'UNSPECIFIED' ) ; #187 = FACE_OUTER_BOUND ( 'NONE', #161, .T. ) ; #188 = EDGE_LOOP ( 'NONE', ( #169, #22, #59, #10 ) ) ; #189 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, 25.39999999999999900, -1.250000000000000000 ) ) ; #190 = PRODUCT_DEFINITION_SHAPE ( 'NONE', 'NONE', #90 ) ; #191 = DIRECTION ( 'NONE', ( -1.000000000000000000, -0.0000000000000000000, -0.0000000000000000000 ) ) ; #192 = DIRECTION ( 'NONE', ( -1.000000000000000000, 0.0000000000000000000, 0.0000000000000000000 ) ) ; #193 = AXIS2_PLACEMENT_3D ( 'NONE', #121, #210, #158 ) ; #194 = DIRECTION ( 'NONE', ( 1.000000000000000000, 0.0000000000000000000, 0.0000000000000000000 ) ) ; #195 = EDGE_LOOP ( 'NONE', ( #73, #64, #55, #39 ) ) ; #196 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, -25.39999999999999900, -1.250000000000000000 ) ) ; #197 = ORIENTED_EDGE ( 'NONE', *, *, #163, .T. ) ; #198 = AXIS2_PLACEMENT_3D ( 'NONE', #24, #126, #228 ) ; #199 = ORIENTED_EDGE ( 'NONE', *, *, #220, .T. ) ; #200 = PERSON_AND_ORGANIZATION ( #147, #87 ) ; #201 = VERTEX_POINT ( 'NONE', #146 ) ; #202 = LOCAL_TIME ( 14, 4, 34.00000000000000000, #50 ) ; #203 = AXIS2_PLACEMENT_3D ( 'NONE', #109, #47, #194 ) ; #204 = EDGE_LOOP ( 'NONE', ( #12, #25, #115, #225 ) ) ; #205 = CC_DESIGN_APPROVAL ( #186, ( #77 ) ) ; #206 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #207 = DIRECTION ( 'NONE', ( 0.0000000000000000000, 1.000000000000000000, 0.0000000000000000000 ) ) ; #208 = ORIENTED_EDGE ( 'NONE', *, *, #155, .T. ) ; #209 = DIRECTION ( 'NONE', ( 0.0000000000000000000, -0.0000000000000000000, 1.000000000000000000 ) ) ; #210 = DIRECTION ( 'NONE', ( 0.0000000000000000000, -1.000000000000000000, 0.0000000000000000000 ) ) ; #211 = PRODUCT ( '50.8 x 50_66067', '50.8 x 50_66067', '', ( #31 ) ) ; #212 = PERSON_AND_ORGANIZATION ( #147, #87 ) ; #213 =( LENGTH_UNIT ( ) NAMED_UNIT ( * ) SI_UNIT ( .MILLI., .METRE. ) ); #214 = VERTEX_POINT ( 'NONE', #145 ) ; #215 = APPROVAL_ROLE ( '' ) ; #216 = CC_DESIGN_DATE_AND_TIME_ASSIGNMENT ( #16, #130, ( #77 ) ) ; #217 = CC_DESIGN_APPROVAL ( #157, ( #124 ) ) ; #218 = VECTOR ( 'NONE', #191, 1000.000000000000000 ) ; #219 = VECTOR ( 'NONE', #15, 1000.000000000000000 ) ; #220 = EDGE_CURVE ( 'NONE', #111, #179, #182, .T. ) ; #221 = FACE_OUTER_BOUND ( 'NONE', #135, .T. ) ; #222 = COORDINATED_UNIVERSAL_TIME_OFFSET ( 5, 0, .BEHIND. ) ; #223 = UNCERTAINTY_MEASURE_WITH_UNIT (LENGTH_MEASURE( 1.000000000000000100E-005 ), #213, 'distance_accuracy_value', 'NONE'); #224 = COORDINATED_UNIVERSAL_TIME_OFFSET ( 5, 0, .BEHIND. ) ; #225 = ORIENTED_EDGE ( 'NONE', *, *, #28, .T. ) ; #226 = CARTESIAN_POINT ( 'NONE', ( -25.39999999999999900, -25.39999999999999900, 1.250000000000000000 ) ) ; #227 = DATE_AND_TIME ( #36, #91 ) ; #228 = DIRECTION ( 'NONE', ( -1.000000000000000000, 0.0000000000000000000, -0.0000000000000000000 ) ) ; #229 = CC_DESIGN_PERSON_AND_ORGANIZATION_ASSIGNMENT ( #212, #32, ( #124 ) ) ; #230 = CARTESIAN_POINT ( 'NONE', ( 25.39999999999999900, -25.39999999999999900, -1.250000000000000000 ) ) ; #231 = LINE ( 'NONE', #159, #117 ) ; #232 = DIRECTION ( 'NONE', ( -0.0000000000000000000, -0.0000000000000000000, -1.000000000000000000 ) ) ; #233 = DATE_AND_TIME ( #56, #79 ) ; #234 = PERSON_AND_ORGANIZATION_ROLE ( 'design_supplier' ) ; #235 = ORIENTED_EDGE ( 'NONE', *, *, #170, .F. ) ; #236 = APPROVAL_ROLE ( '' ) ; #237 = APPLICATION_PROTOCOL_DEFINITION ( 'international standard', 'config_control_design', 1994, #17 ) ; ENDSEC; END-ISO-10303-21;