法兰内嵌结构蝶阀可选择工厂安装316不锈钢或镀锌铁钢法兰内嵌件。
Lug insert Style valve has factory installed SS316 or zinc plated lug inserts.
快速不需焊接和再镀锌，安装速度比法兰连接管件快3倍以上。
Quick: Don't need to weld and galvanize, the setting time is 3 times quicker than the flange connect fitting.
快速不需焊接和再镀锌，安装速度比法兰连接管件快3倍以上。
Quick: Don't need to weld and galvanize, the setting time is 3 times quicker than the flange connect fitting.
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