Q347F手动固定式法兰球阀

Q47F不锈钢固定式法兰球阀

Q41F锻钢浮动式法兰球阀

Q741F液动软密封法兰球阀

Q641F气动软密封法兰球阀

Q947F电动软密封固定式法兰球阀

Q341F-1200LB涡轮软密封法兰球阀

Q41F美标软密封法兰球阀

Q7941Y液动浮动式硬密封法兰球阀

Q6941Y气动锻钢硬密封法兰球阀

Q941Y-1000LB电动硬密封法兰球阀

Q341Y美标涡轮硬密封法兰球阀