... customers' samples and drawings. Material of oil cylinder: stainless steel Application of oil cylinder: movable arm,skip bucket, ... mechanical loader, farming machinery and steering oil hydraulic cylinder. Piston Rod diameter: 30mmTube inside diameter: ... Chrome or nickel plated, ground & polished piston rodSeries of oil cylinder:Bulldozer parts series: SHANTUI, KOMATSU, CAT, XCMC, ...