It was eventually superseded by the modern, petrochemical variety, and manufacture stopped altogether by the 1970s.
其最终被现代石油化工衍生物所超越，并在20世纪70年代全面停产。
Wide applications in thin plank manufacture, pipe installation, mould repair, petrochemical industry, architectureal decoration etc.
广泛适用于薄板制件、道安装、具修理、化行业、筑装饰工程等。
Wide applications in thin plank manufacture, pipe installation, mould repair, petrochemical industry, architectureal decoration etc.
广泛适用于薄板制件、道安装、具修理、化行业、筑装饰工程等。
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