Presents the structures and features of 70500 series adjusting valve manufactured byMasoneilan Co. and presents problems existing in some of the adjusting valves when in use as well asthe measures to solve the problems.
英
美
- 介紹Masoneilan公司生產(chǎn)的70500系列調節閥的結構、特點(diǎn)，并闡述部分調節閥在使用中存在的問(wèn)題及改進(jìn)措施。
