... high-temperature, abrasion, oil, corrosion, and ageing, and superior sealing effect3. single spring or double spring ... is OK to send you for checking the quality. GoodsValve oil sealModelCG125, CD70,etc.Regular ... Spring materialStainless steelSpring numberOne or two pieces as per yours requirementOEM serviceAvailableFeaturesGood sealing, durablePackingbag, blister card , or as required High Quality ...