valve spring retainer Material:titanium ,titanium alloy,aluminium Dimensions:Dia29mm offer OEM ,design, ... etcDimensions:Dia29mmTechnique:cnc machining etcApplication:moto,bicycle,car or other industrial equipment etcit also can be colored ,including blue,green,yellow ... time:20 days also according to the quantitythe valve spring retainer images: Valve spring ...