We are STAIR CHEM & TECH CO., LTD. SHANDONG CAOXIAN. We main produce rubber chemical, intermediate production and other fine xxxxx products includes accelerator NS, M, DM, CBS, NOBS, TMTD, antioxidant RD, 4010NA, 4020 and so on.And we are a leading basis of rubber chemicals in our xxxxx company has got ISO9001:2000 xxxxx products have been exported to more than ten countrys for many years