De or het nanking?

The correct Dutch article is:

het nanking

Exception Words ending in -ing usually take de, but nanking is an exception. See the rule
Meaning (Dutch) (textielindustrie) dichte roodgele Chinese katoenen stof

How to use nanking

the nankinghet nanking
this nankingdit nanking
that nankingdat nanking
our nankingons nanking
your nankingjouw nanking
every nankingelk nanking
which nanking?welk nanking?
a big nanking / the big nankingeen groot nanking, het grote nanking

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).