... 1 Process:free forging,plate din flange Material:carbon steel,stainless steel size:1/2"-24" Standard:ANSI,DIN, ... -standard flange;2We are a specialized manufactory in producing Flanges;flange3Standard: ANSI Flange, MSS Flange, API Flange, ... Yellow print, black print, oil and Zn6Class: 150LB~2500LB7Material: Carbon steel, Stainless steel and Alloy steel8Usage: Petroleum, Chemical, Power, Gas, Metallurgy ...