煤焦油沥青 coal tar asphalt; coal tar pitch; coalite tar asphalt; coalite-tar pitch; coaltar pitch 木焦油沥青 wood tar pitch; wood-tar pitch .
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coal-tar asphalt 煤焦油沥青
coal-tar asphalt coal tar pitch 煤焦油沥青
Coal tar asphalt varnish L01-7 水罗杀
modified coal-tar asphalt 改性煤沥青
coal-tar r asphalt 煤焦油沥青
The performance and usage of coal-tar asphalt were introduced. Meanwhile, it was assumed the excellent characteristics, mechanism and technology of the modified coal tar pitch.
介绍了煤沥青的性能、用途以及有广泛用途的煤焦油改质沥青的优异特性，改质机理和生产工艺；
Asphalt, coal tar enamel, fusion-bonded epoxy, polyethylene tape, 2-layer PE and 3-layer PE coatings may be used for corrosion control of underground pipelines.
埋地钢管的外防腐可采用沥青防腐层、煤焦油瓷漆防腐层、聚乙烯胶粘带防腐层、熔结环氧粉末防腐层、二层结构聚乙烯防腐层、三层结构聚烯烃防腐层等技术。
Medium with worse lubricating property, such as light fuel oil, heavy fuel oil, coal tar, asphalt, viscose, emulsified mixture, etc.
润滑性较差的介质，如轻质燃油、重质燃油、煤焦油、沥青、粘胶液、乳化液等；
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