It's a moment when you're not afraid of the heat and the cold and the engine starts. The smooth experience of friction, which inspires you with international excellence, helps you to walk higher, go further, create speed technology to drive the future, achieve classics in detail, and lead chinese to quality. Shandong lubricated oil company (dnn), created in august 2009. Soutar industrial park no. 18, located in the tianbashi district of chinan, shandong province, as its english name dnn (durableandnoise) represents, durable and quiet. Shandong lubrication and lubricating oil limited has always held a position among its domestic counterparts with state-of-the-art production processes and advanced equipment。