New Shanghai One well placed mine shaft cage wellhead engineering construction company, the third Sino-Coal is responsible for installation of mechanical and electrical installation.

新上海一号井煤矿副井井口罐笼置入工程由中煤第三建设公司机电安装工程处负责安装。

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As important engineering machine, hydraulic excavator is widely used in earthwork construction and mine exploitation.

液压挖掘机作为重要的工程机械，广泛应用在各种土石方施工和矿山采掘业中。

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Wall masonry of brick-concrete structure is a mine work in industrial and civil buildings, so the quality of wall masonry directly affects the quality of whole construction engineering.

砖混结构的墙体砌筑是工业与民用建筑的主要工作，墙体砌筑的质量直接影响着整个建筑工程的质量。

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