... 2.Strong supply capability 3.factory price engine cylinder STERY WD615-67 more details: Engine cylinder Liner ( sleeves) suitable to ... STERY series: 1.finish: SF/FF. 2. Engine types: WD612,WD615-67, WD615-68 etc 3. Production Description ... nickel etc. 3) Different Treatment: Phosphated, Nitrided, Chrome plated, laser treatment, quenching4) Develop the new items according to the sample ...