valve stem oil seal additive

{"title":"LPG CNG Solenoid Valve Brass Thread Seat Armature Plunger Kits","imgUrl":"https:\/\/img.chinax.com\/nimg\/d6\/9d\/f0fc72440bc3b15b709965c5026e-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"BRANDO","Model Number":"BAPC212033503","Minimum Order Quantity":"1000","Delivery Time":"7 work days","Certification":"CE","Place of Origin":"Ningbo CHINA","Payment Terms":"D\/A, D\/P, MoneyGram, Western Union, L\/C","Supply Ability":"60000 pcs per month","Packaging Details":"Standard carton","Voltage":"AC\/DC","Standard or no":"Standard","Color":"brass and silvery","Seat type":"Pentagon seat","Material":"SS304","Type":"2\/2 way NC","Item weight":"42g","Connection":"Thread"}}