Butterfly Type Non-slam Check 蝶式缓冲止回阀
butterfly-type titration clip 蝶式滴定夹
Vertical disc type butterfly valve 垂直板式蝶阀 ; 铅直板式蝶阀
Imported Butterfly Type Non-slam Check 进口蝶式缓冲止回阀
Butterfly Type Non-slam 蝶式缓冲止回阀
butterfly-type routing path 蝶型路由
butterfly - type routing path 蝶型路由
butterfly tuner type frequency meter 蝶形调谐式频率计
Flanges are also the standard connection for industrial butterfly type valves.
对于工业蝶阀，法兰还是标准连接方式。
The butterfly type valve casting's the appearance and inner quality is increased through improving the technique and strengthening order-making control.
通过改善铸造工艺与加强过程控制，提高了铸件外观和内在的品质。
The alteration rule of inequilateral Z-type steel thickness in butterfly pass is calculated and analyzed.
计算分析了不等边 Z 字钢在蝶式孔型中厚度变化的规律。
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