Strona Główna / Produkt / Seria kołnierzy do zbiorników ciśnieniowych / Kołnierze niestandardowe / Large diameter pressure vessel flange Kołnierze niestandardowe Large diameter pressure vessel flange Large diameter flange is a kind of flange, which is widely used and promoted in the machinery industry, chemical industry, wind power industry and sewage treatment industry, and has been praised and favored by users