Dandong Tianyu Petroleum Additive Factory is situated in Danyang city of Jiangsu Province, as part of Yangtze Delta Economic Development Zone. Hu-Ning Expressway is nearby while Provincial Highway 340 traverses its surroundings, thus, the transport here is particularly favorable. 　　Established in the year 1997, our factory is specialized in manufacturing petroleum additives, with an annual capacity surpassing 1000t, holding a large variety and stable quality. We drew on technological data and production techniques on petroleum additive from the General Office of China National Petrochemicals and gained instructions from engineers of Lanzhou. At present, additive Factory on spot, on the way to improving our expertise on petroleum additive production. Our products comprises complexing agents covering T202, T203, T305,T306, T307, T406, T603, T604, T612, T614, T706, T3211 , T3148, T320, T3218, T4208 and so on, as well as various kinds customized according to specific demand. Meanwhile, our products have gone through tests implemented by both Wuxi Quality Test Center and Changzhou Quality Test Center, securing stable quality. The output doubles, with an annual capacity of more than 2,000 tons, our factory is able to provide a multitude of domestic brand additives, covering large variety. Moreover, our service features three Superiors (superior quality, superior price, superior preference). 　　T305, T307 and T306 are special antiwear addictives. In particular, T305 and T307 antiwear agents are sulfur and phosphor type gear lubricant additive, enjoying favorable extreme pressure property, powerful antiwear ability, friction improvement and relatively high chemical stability. They are applied in the research and development of gear oil for overloaded vehicles, heavy-load industrial gear oil and medium-load gear oil etc. Meanwhile, advanced technology on petroleum additive is absorbed successively from Shanghai Additive General Factory and Lanzhou Additive Factory, contributing to its success in quality stability test by Wuxi Quality Test Center and Changzhou Chemical Engineering Research Institute. Owing to the lowest price and best quality, our products enjoy a good market all over our country and are highly appreciated by customers! What's more, a group of skilled technicians exert themselves unremittingly to develop new products, introduce excellent overseas products and improve service in an effort to cater to different demand from customers. 　　Tenet of factory: Quality-forever, customer-real judge. 　　 Factory director Shi Suozhu warmly welcomes customers from everywhere of our country to contact for negotiation and partner to create a promising future hand in hand in the new era!