筆鉛 [笔铅]

Jyutping bat1 jyun4
Pinyin bǐ qiān

Definitions (Wiktionary)
  1. noun
    pencil lead; pencil refill
    (syn.) 鉛筆鉛, 笔芯, 鉛筆芯, 铅笔铅, 筆芯, 铅笔芯
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）