Gioăng kim loại MS16 DN80 PN25 Sprial wound with outer ring and inner ring MS16 PN25 EN 1092-1 Material( outer/ Slip/ filler / inner): CS/304/FG/CS Inner ring: carbon steel Slip: SS304 Filler: graphite 98% Centering/ outer ring: carbon steel (Gioăng kim loại MS16 DN80 PN25)