Thaum Lub Kaum Hli 13-17, 2009, Liang Zhenghua, Tus Thawj Coj ntawm Zhejiang Kaihua Moulds Co., Ltd. tau koom nrog "2009 German International Plastics, pwm thiab hlau Machinery Exhibition" tuav hauv lub teb chaws Yelemees, Friedrichshafen Exhibition Center (seem daim duab).
Lub sijhawm tshaj tawm: Lub Ib Hlis-09-2021