Flange nru ububa valvụ bụ tumadi eji na ulo oru pipeline, ya isi ọrụ bụ ebipụ mgbasa nke ọkara na pipeline, ma ọ bụ mezie size nke ọkara eruba na pipeline. Flange urukurubụba valvụ a na-eji ọtụtụ ebe na mmiri conservancy engineering, mmiri ọgwụgwọ, mmanụ ala, ch ...
GỤKWUO