Liaocheng Ruijie Chemical Co.,Ltd (located in Liaocheng City, Shandong province) is one special manufacturer of synthetic esters(POE series) which applied as the base fluid or oiliness additive in the fields of oil-base metal working fluids, industrial lubrication oil/grease and vehicle lubricants ,oilfield lubricants ,rubber/plastic processing fields , etc. Our factory has passed the authentication of ISO9001 quality system and ISO 14001 environmental management system. Up to now, our factory gradually opened the overseas markets including POE ester series, e.g., 1. Trimethylolpropane Trioleate(TMPTO,ester baseoil for #46 HFDU hydraulic oil ), 2. Isooctyl Oleate (SOS,ester baseoil for metal working oil), 3. Pentaerythritol Tetra Oleate (PETO,ester baseoil for #68 HFDU hydraulic oil..