Ductile iron retainer ring, which widely used in oil cylinder, hydraulic cylinder ,pneumatic cylinder etc. Made by continuous casting ductile iron, zero casting defects, superb wear resistance.
The material : GGG40/GGG50 (Astm a536 65-45-12/80-55-06)
Key words: hydraulic cylinder retainer ring, oil cylinder retainer ring, GGG40 retainer ring, GGG50 retainer ring, 65-45-12 retainer ring,80-55-06 retainer ring.