www. sejong-21c. com
CHEMICAL PLANT ENGINEERING & CONSTRUCTION ; POLYESTER, POLY-URETHANE, 2ND BATTERY MATERIALS, SURFACTANT, ADHESIVES, PET RECYCLE,…. ETC.
www. sejong-21c. com
CHEMICAL PLANT ENGINEERING & CONSTRUCTION ; POLYESTER, POLY-URETHANE, 2ND BATTERY MATERIALS, SURFACTANT, ADHESIVES, PET RECYCLE,…. ETC.