How many letters does the top answer for “an industrial city of northeastern china in hebei province” have?

The most common answer is tangshan (8 letters).

Crossword clue: an industrial city of northeastern china in hebei province

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

tangshan 8 letters wn-def

an industrial city of northeastern China in Hebei province

a city in northeastern china 50% similar → mukden, shenyang