Chinese telescopic flange butterfly valve: lamolemole ma le fa'alavelaveina, foia au fa'afitauli paipa
Chinese telescopic flange butterfly valve: lamolemole ma le fa'alavelaveina, foia o au paipa fa'afitauli I le gaosiga o fale gaosi oloa, o le fa'agaioiga masani o faiga paipa e taua tele mo le fa'agasologa lelei o le gaosiga. Ae ui i lea, ona o mafuaaga eseese, pipeline system ...
va'ai fa'amatalaga