... Dimensions:Dia29mm offer OEM ,design,label service Product name: Valve spring retainerMaterial:titanium ,titanium alloy,aluminium etcDimensions:Dia29mmTechnique:cnc machining ... can be colored ,including blue,green,yellow,gold,purple,red,black,natureprice:about USD 2.5/pc FOB Qingdao portPayment ... time:20 days also according to the quantitythe valve spring retainer images: Valve spring retainer