Safety shall be paid attention to at welding site.

现场焊接要注意安全。

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Quality and schedule of group welding on site has been improved through pre-assembly.

通过预组装，施工现场组焊质量和周期得到了保证。

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Quality and schedule of group welding on site has been improved through pre-assembly.

通过预组装，施工现场组焊质量和周期得到了保证。

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