rubber gasket 1. type: valve oil seal, wiht one or two spring 2. many models: CG125, JH70, GY6,AX100,etc 1.material: NBR, FKM with stainless steel framework 2.feature: excellent resistance against high-temperature, abrasion, oil, corrosion, and ageing, and superior sealing effect3. single spring or double spring for your choice4. packing: 2pcs per polybag. Or as per your requirements.5. small ...