English
全部
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
搜索
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按相关度排序
按时间排序
中国粉体网
3 年
Q61F-25C-DN25手柄式全焊接球阀
Q61F-25C-DN25手柄式全焊接球阀的球体是浮动的,在介质压力作用下,球体能产生一定的位移并紧压在出口端的密封面上,保证出口端密封。球阀阀杆采用防渗漏结构,阀杆底部有1个PTFE自封密封垫和1个O型密封圈,上面有2个O型密封圈、两个PTFE密封垫组成,确保无 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Senate passes funding bill
Sworn in as Canada's PM
Second protester arrested
Texas measles outbreak
Strikes deal with DOGE
SpaceX launches Crew-10
Wins longest-ever Iditarod
Plane engine catches fire
Man hit by motorcade, dies
Swatting call about gunman
Consumer sentiment drops
Massive dust storms in Texas
Gold rises to new heights
Pleads not guilty
Laceration hazard recall
Trump Tower protest
Influencer leaves Australia
Hamas to release hostage
Smishing scam warning
FDA, NIH nominees advance
UN report accuses Israel
To cut 2,000+ jobs
$3B deal to extend rights
‘Ted Lasso’ is coming back
Influential WY senator dies
Senate confirmation hearing
Top FDA lawyer resigns
Teixeira pleads guilty
Visits DOJ for speech
Permanently shuts route
Child abuse images sentence
To host Golden Globes
Top intelligence agency visit
March megastorm
反馈