Lug Insert Style valve has factory installed SS316 or zinc plated lug inserts .
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。
True Lug design has factory installed zinc plated or SS316 lugs and is specially designed for connection to either side of valve .
真法兰结构具有工厂安装的镀锌钢或316不锈钢法兰，特别适用于连接到阀门两侧。
ss316