搜索优化
Rewards
English
搜索
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
过去 7 天
时间不限
过去 1 小时
过去 24 小时
过去 30 天
按时间排序
按相关度排序
仪表网
4 天
良工阀门京蝶阀门手动法兰衬氟隔膜阀产品概述
2、利用FEP(Teflon)氟塑料与全成橡胶复合而成的隔膜的带有Teflon氟塑料衬里层的阀门,可适于除“熔融碱金属、元素氟"外的各种强腐蚀性介质。 3、做为执行元件的膜片,由于频繁的启闭,易产生疲劳断裂,应视工况、介质的特性,进行定期更换。 4、氟塑料的防腐 ...
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
Left note, bail denied
Didn't authorize apology
1951 kidnap victim found
1/3 think they have CTE
Visits US ammunition plant
Asks to be put on NY ballot
NY reports death from EEE
Friedkin set to buy Everton
Robinson loses key staff
Free COVID-19 tests
Colo. shooter found guilty
Astronauts return to Earth
Dolphins legend Morris dies
Co-founder testifies
Economic speech this week
California sues ExxonMobil
SpaceX plans Mars missions
NE electoral change blocked
Closing last full-size store
Reds fire manager
Tech ban proposed
FBI: Violent crime declined
Bulls escape MA rodeo
No govt. shutdown for now
Gulf Coast storm warning
More troops to Middle East
Makes emergency landing
Returning Indian antiquities
Texas sues Biden admin
反馈