K Nuna 2019: Kasuwancin Kasuwanci na Duniya No.1 K don Filastik da Roba a Jamus Guangzhou UTECH ASIA/PU CHINA 2019 Satumba 5 - Satumba 7 Nunin PU na 2018 a Shanghai 2015 China Shanghai kasa da kasa nunin polyurethane