coal-tar enamel 中文意思是什麼
coal-tar enamel
解釋
煤焦油磁漆-
Standard of coal tar enamel external protective coating for buried steel pipeline
埋地鋼制管道煤焦油瓷漆外防腐層技術標準 -
Coal - tar protective coatings and linings for steel water pipelines - enamel and tape - hot - applied
給水鋼管煤焦油保護塗層和內襯.熱用搪瓷和膠帶 -
Standard for coal - tar protective coatings and linings for steel water pipelines - enamel and tape - hot applied
鋼制供水管道的煤焦油保護塗層和內襯標準.搪瓷和膠帶.熱水
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