We are Qingdao Grand Opulence International Trade Company. We are located in Qingdao and established in 2006, We are the world export agent of Yellowsea, Double star, and Longmarch, for PCR, I recommend Landsail brand for you, which designed team is from Germany, most of the experts have rich experiences in technology in the leading tire company of the world like Michelin, in more than 8 years experience in tire design, compound design, process design, quality control, simulation and other tire technology areas, the tires are treated more well in tire architecture, compouding, Single-Step-Mixing(SSM), process, quality control and simulation and etc. Landsail now can; t supply to EU and USA market. At present, we are finding the exclusive agent all over the world except EU and USA market.