OK Tyre Group Co., Ltd. is one of the most famoustires trading company in Shandong, China. The company mainlyprovides PCR Tries and TBR Tires, OTR Tires are provided as well.GRENLANDER brand tires have passed the certificates of DOT,ECE, REACH, CCC, GCC, INMETRO, SASO, SONCAP, etc. For moreinformation, welcome to visit our company website and call thephone.