广泛应用于食品、饮料加工,以及制药和化学工业领域。 标准设计 有各标准的阀门系列可以向客户提供,即用于DIN 标准系列,3A标准系列,SMS 标准系列,ISO/IDF 标准系列,BS/RJT 标准系列,ASME/BPE 等标准系列。 球阀的组成部件一般包括:一个手柄、一个带有贯通 ...
标准设计 有各标准的阀门系列可以向客户提供,即用于DIN 标准系列,3A标准系列,SMS 标准系列,ISO/IDF 标准系列,BS/RJT 标准系列,ASME/BPE 等标准系列。球阀的组成部件一般包括:一个带有贯通腔的球体、阀体、阀门轴芯以及轴密封圈。 现有的球阀系列规格有 ...
A record number of children are living in B&Bs beyond the legal limit as England's homelessness crisis pushes councils to breaking point. MPs said there is a "dire need" for housing reform ...
Your token is a confidential piece of information. Possession of this token allows individuals to download applications, send messages, among other actions, under ...
Major depression is a highly prevalent mood disorder, affecting about 350 million people, and around 30% of the patients are resistant to currently available antidepressant medications. Recent ...
Correspondence to Mille Falk Bjørch, Centre of General Practice, University of Copenhagen Department of Public Health, Copenhagen, Denmark; millefb{at}live.dk Objectives We aimed to systematically ...