Expansion joints of various kinds are fitted on steam pipes.
种样的伸缩接头被安装
蒸气管道
。
Expansion joints of various kinds are fitted on steam pipes.
种样的伸缩接头被安装蒸气管道。
Expansion joints of various kinds are fitted on gas mains.
种样的伸缩接头被安装煤气的总管道。
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