... Components: HASCO, DME, PUNCH, JINHONG, etc (For Reference)Hot Runner: YUDO, HASCO, M-H-R, etc (For Reference)Main Software ... : AutoCAD, UG, CATIA, Solid works, etc Product Name flow damper,ventilation dampers,louver vents damper Item codeABSG001MaterialPlastic(ABS/HIPS ... control the air volume.4. Removable core, four direction air flow , the windows are assembled with each frame, the windows ...