Pipe line scraper diverter
作者： Jr Maurice L Barrett
DOI:
关键词: Environmental science 、 Mechanical engineering 、 Line (text file) 、 Scraper site
摘要:
lens.org 参考文章(3)
Hughes John Farrar, Apparatus for controlling lubricant flow to a plurality of lubricated points ,(1956)
Fluck Gisbert, Multidirectional control of liquid and gas flow ,(1935)
Reger Raymond, Valve operating mechanism ,(1955)