About SAKAI MASAHIRO
About SERI OSAMI
About copper pipe
About pitting corrosion
About anion
About film
About Fresh Water
About cuprous oxide
About Water Quality
About thin film
About sulfuric acid
About chloride
About hydrogencarbonate ion
About in-place test
About corrosion mechanism
About heat transfer pipe
About pipe fitting
About feed water pipe
About surface analysis
About silicon dioxide
About Corrosion
About mechanism
About silica
About air conditioning equipment
About HCO3-
About Corrosion
About 銅管
About レス
About 孔食