diff --git a/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.FCStd b/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.FCStd
new file mode 100644
index 00000000..0512bafd
Binary files /dev/null and b/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.FCStd differ
diff --git a/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.step b/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.step
new file mode 100644
index 00000000..6e29bb24
--- /dev/null
+++ b/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.step
@@ -0,0 +1,1419 @@
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diff --git a/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.stl b/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.stl
new file mode 100644
index 00000000..8338cfff
Binary files /dev/null and b/HVAC/Ducts/Circular/Duct_curved_circular_complete_R02.stl differ
diff --git a/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.FCStd b/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.FCStd
new file mode 100644
index 00000000..46221afd
Binary files /dev/null and b/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.FCStd differ
diff --git a/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.step b/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.step
new file mode 100644
index 00000000..b71505cd
--- /dev/null
+++ b/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.step
@@ -0,0 +1,439 @@
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+#364 = NEXT_ASSEMBLY_USAGE_OCCURRENCE('6','Flange_02_001','',#5,#257,$);
+#365 = PRODUCT_RELATED_PRODUCT_CATEGORY('part',$,(#259));
+#366 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#367)
+ ,#133);
+#367 = STYLED_ITEM('color',(#368),#41);
+#368 = PRESENTATION_STYLE_ASSIGNMENT((#369,#375));
+#369 = SURFACE_STYLE_USAGE(.BOTH.,#370);
+#370 = SURFACE_SIDE_STYLE('',(#371));
+#371 = SURFACE_STYLE_FILL_AREA(#372);
+#372 = FILL_AREA_STYLE('',(#373));
+#373 = FILL_AREA_STYLE_COLOUR('',#374);
+#374 = COLOUR_RGB('',0.800000010877,0.800000010877,0.800000010877);
+#375 = CURVE_STYLE('',#376,POSITIVE_LENGTH_MEASURE(0.1),#377);
+#376 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
+#377 = COLOUR_RGB('',9.803921802644E-02,9.803921802644E-02,
+ 9.803921802644E-02);
+#378 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#379)
+ ,#244);
+#379 = STYLED_ITEM('color',(#380),#152);
+#380 = PRESENTATION_STYLE_ASSIGNMENT((#381,#386));
+#381 = SURFACE_STYLE_USAGE(.BOTH.,#382);
+#382 = SURFACE_SIDE_STYLE('',(#383));
+#383 = SURFACE_STYLE_FILL_AREA(#384);
+#384 = FILL_AREA_STYLE('',(#385));
+#385 = FILL_AREA_STYLE_COLOUR('',#374);
+#386 = CURVE_STYLE('',#387,POSITIVE_LENGTH_MEASURE(0.1),#377);
+#387 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
+#388 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(#389)
+ ,#355);
+#389 = STYLED_ITEM('color',(#390),#263);
+#390 = PRESENTATION_STYLE_ASSIGNMENT((#391,#396));
+#391 = SURFACE_STYLE_USAGE(.BOTH.,#392);
+#392 = SURFACE_SIDE_STYLE('',(#393));
+#393 = SURFACE_STYLE_FILL_AREA(#394);
+#394 = FILL_AREA_STYLE('',(#395));
+#395 = FILL_AREA_STYLE_COLOUR('',#374);
+#396 = CURVE_STYLE('',#397,POSITIVE_LENGTH_MEASURE(0.1),#377);
+#397 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
+ENDSEC;
+END-ISO-10303-21;
diff --git a/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.stl b/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.stl
new file mode 100644
index 00000000..d5c86551
Binary files /dev/null and b/HVAC/Ducts/Circular/Duct_linear_circular_complete_R02.stl differ