卷闸门、防火门、伸缩门、防盗门的生产。
Gate, fire doors, extendable doors, security doors production.
同时，结合生产任务，为龙滩底孔弧形闸门的优化设计和安全运行提供参考意见。
Finally, combined with productive tasks, some Suggestions are provided for the optimum design and safe operation for Longtan bottom radial gate.
同时，结合生产任务，为龙滩底孔弧形闸门的优化设计和安全运行提供参考意见。
Finally, combined with productive tasks, some Suggestions are provided for the optimum design and safe operation for Longtan bottom radial gate.
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