Purchase Qty. Reference FOB Price
1,000-4,999 Pieces US$0.08
5,000-9,999 Pieces US$0.05
10,000+ Pieces US$0.03
Product Description
Product Description Valve Stem Oil Seal The valve stem seal has three major functions: one is to prevent the mixture of gasoline and air and the exhaust gas from leaking, the other is to prevent the oil from entering the combustion chamber; and 30 to prevent the oil from entering the gas pipe. ...