... .Our main products including DBK Series Hydraulic Breaker,Front Cylinder,Rear Cylinder,Middle Cylinder,Piston,Inner Bushing,Outer Bushing and so ... on.DBK 850 Hydraulic Breaker Rear Cylinder1.Applicable Vehicle:7-14 ton2.Gross Weight:32 kg3 ... ,good toughness,and high strength. Excavator DBK 850 Hydraulic Breaker Rear Cylinder