DIN 2558 flange yog tsim nrog tiaj xov PN 6 thiab oval hom, cov xov flange no yog German kev tiaj tus, cov khoom siv yog hlau stainless

DIN 2558 flange yog tsim nrog tiaj xov PN 6 thiab oval hom, cov xov flange no yog German kev tiaj tus, cov khoom siv yog hlau stainless
