screwed globe valve的意思|示意
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螺纹截止阀
screwed globe valve的网络常见释义
旋动球阀 ... screwed flange 螺旋凸缘、螺纹法兰、栓接法兰 screwed globe valve 旋动球阀 screwed sleeve 螺纹套筒、螺纹套管、螺纹管箍 ...