- 产品规范/用途/特点
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保温截止阀应用规范 Application Norm
1、 设计制造按GB12235-59
Design Manafacfure According to GB12235-59
2、 结构长度按GB12221-89
Face to Face According to GB12221-89
3、 法兰尺寸按JB/T79-94
Flange Dimenaion Accoring to JB/T79-94
4、 阀门检查和试验按GB13927
Valve check and Test According to GB13927
保温截止阀结构 Structure
B.B;OS&Y
Characteristic: B.B;OS&Y
- 产品型号/参数
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