产品参数
品牌
生产厂家厂商性质
所在地
GB截止阀应用规范 Application Norm
1、设计制造按122236-89
Design Manafacfure According to 122236-89
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