Lubricant Additive, Oil Additive, Extreme Pressure Additive manufacturer / supplier in China, offering Glycerol, Glycerin, 99.5%, 56-81-5, Industrial Grade, API Sp/Sm/Sn GF-6 Pcmo Gasolin Petrol Vehicle/Car Engine Lubricant Oil Additive Package, CAS 18760-44-6 Sulfolane Based Synthetic Seal Swell Additive and so on.