2至12英寸公称通径的蝶阀是无法兰类型,但都有平板型和吊耳型两种类型。

2至12英寸公称通径的蝶阀是无法兰类型,但都有平板型和吊耳型两种类型。的英文翻译

基本释义

• "Butterfly Valves 2""-12"" shall be of the flangeless type, both lug and wafer styles."