SK200/SK230 excavator track adjuster,Website:http://www.mining-parts.net, track spring ass'y, track recoil spring ass'y�MaterialSteel,Alloy steel,other choise availableQualityHeat-treated,HRC40-55ColorsBlack or yellowTechniqueForging/castingFinishingzinc/chrome/nickel plated, plate blak, OxisizedModelsKmatsu,Hitachi,Cater,Kato,Kobelco,Simitomo,Hyundai etcWarranty time2000 hoursCertificationISO9001FOB PriceFOB Xiamen USD 7-40/PieceMOQ10 pieceLead TimeWithin 20 days after order confirmed