tar pitch

短语词组

短語

• coal tar -pitch 煤脂焦油類
• coal tar based pitch 煤焦油瀝青
• coal tar electrode pitch 煤焦油電極瀝青
• asphalt -tar pitch 硬焦油瀝青
• modified coal tar pitch [材]改質瀝青
• hardwood -tar pitch 硬木焦油脂
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