石油、天然气工业用螺柱连接阀盖的钢制闸阀 旁通装置管道尺寸
公称尺寸
DN
连接管最小公称尺寸
50~100
15
150~200
20
250~600
25
Your closest OB-OB(中国)一站式服务官网 is
Return to OB-OB(中国)一站式服务官网 International continue to OB-OB(中国)一站式服务官网
This region has not yet joined our new website. You will now continue to the existing site for OB-OB(中国)一站式服务官网
Continue