Free applications and CAD utilities (mostly our freeware & trials) Other Goodies 2.2MB 1658× 15.12.2016 Polypropylen water pipe library for Inventor (.idcl, 2017) FILE Size: 2.2MB • ZIP archive β extract to any folder using 7-Zip, WinRAR, or the built-in Windows tool. Then load the files via APPLOAD or drag-and-drop into AutoCAD. Free Download ▼ β Close