SS304 Weld flange GOST 12821

SS304 Weld flange GOST 12821：

Application: petroleum, chemical, food industry, marine, oil, gas, steam, water,etc.

Pressure grade: PN10Mpa, 16Mpa, 20Mpa

DN: 2'-24'

Material: Carbon steel , Stainless steel, Alloy steel