... load transfer judgement 转供判断 收藏 load backrest extension 承载支架延伸部分 收藏 expansion valve body 阀体 收藏 ...
基于62个网页-相关网页
If the valve body material can be welded, but very different thermal expansion coefficient, or changes in operating temperature range of a larger thread junction closure weld must be honey.
如果阀体的材料是可以焊接的,但膨胀系数差异很大,或者工作温度的变化幅度范围较大,螺纹连接部必须进行蜜封焊。
The valve body expansion pipe is only used to open or close the valve, but can not replace the expansion pipe in the pipe.
阀体伸缩器只作用于方便阀门本身的启闭,不能代替管道中应设有的伸缩器。
应用推荐