blender doesn't show me some parts

[sherillchoi]

I think we need more information about how you imported it etc.

But first step is to get the ldd up to date as not all LDD parts are available in LDraw. Also LDD development has been stopped so it's default conversion information is outdated.

You can (partly) fix this by using the fan maintained version of ldraw.xml  (search for it on eurobricks.com)

i got it, thank you for the explanation.