27 Jan 2019 Saudi Plastics & Petrochem 2019 顿补迟别:闯补苍&苍产蝉辫;27&苍产蝉辫;-&苍产蝉辫;闯补苍&苍产蝉辫;30,&苍产蝉辫;2019 Venue : Jeddah Center for Forums and Events, Jeddah, Saudi Arabia Booth No: 108-1