A、軟化點(diǎn)溫度60-75℃;β樹(shù)脂≦12%;結(jié)焦值≦42% B、軟化點(diǎn)溫度75-90℃;β樹(shù)脂≦14%;結(jié)焦值≦46% C、軟化點(diǎn)溫度100-120℃;β樹(shù)脂≦16%;結(jié)焦值≦50% D、軟化點(diǎn)溫度100-115℃;β樹(shù)脂≦18%;結(jié)焦值≦54%
A、冶金焦 B、活性炭 C、炭黑 D、硬質(zhì)炭
A、300-400 B、350-450 C、500-600 D、600-700