Our firm can offer you Center Ring & Outer Ring from NW16 , NW 25 , NW40 , NW50 in 304 grade. The O-ring are Viton material.
KF Center ring & outer ring
Size :NW16, 25 , 40 , 50
Material : 304 grade
Surface roughness :
Ra ID < 0.8um ,& OD < 1.6um
Packing: Individually.
PS. O-ring -Viton or NBR
