全焊接钢球阀 Frese 90015410、90020410等

SPERAMAX全焊接钢球阀 设计用于安装在水和气体供应系统、火力发电厂、化工、炼油、天然气和其他行业的管道上，作为阻断液体和气体工作介质流动的截止装置。

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