1.front&back head assy 2.breaker spare parts 3.high quality, ... in China,such as Hydraulic breaker chisels,Thrust Ring Bushings&Front Cover,Rod& Stop Pins,Piston,Through&Side bolt,Outer-shell ... ,back&front head,Gas Cylinder,Seal Kit and so on can suitable ... contact me for more information. Looking forward to your cooperation! front/back head