... based on customers' samples and drawings. Material of oil cylinder: stainless steel Application of oil cylinder: movable arm,skip bucket, mechanical loader, farming machinery ... : ISO9001Piston Rod: Chrome or nickel plated, ground & polished piston rodSeries of oil cylinder:Bulldozer parts series: SHANTUI, KOMATSU, CAT, XCMC, ZOOMLION, HBXGExcavator ...