We are a professional manufacture of lubricating oil additive package. We specialize in this field for over 20 years, with high quality and pretty competitive price.Would you mind to visit our website :www.jzdonggong.comWe have handling products as following:Additive package contains:1Engine Oil Additive Package2Gear Oil Additive Package3Hydraulic Oil Additive Package4Mental Processing Oil Additive Package5Industrial Oil Additive Package6Non Silicon Compound Antifoam AgentAlso we have additive componet which contains DetergentDispersantAntioxidant And Anticorrosion AgentExtreme Pressure Antiwear AgentAntioxidant AndAntiscorching AgentTackifierAntirust AgentDepressant and ect.