Zhengda International Holdings Limited established in Shanghai, hold Shanghai Xiang Chu Trading Co., Ltd. and Shanghai Environmental Engineering Co., Ltd., Zhengda International Holdings Limited has a group of good educated and professional technicians and managers, zhengda has workhard and experienced material purchasing and sales team. We have strong and reliable product supply, best product quality and good after sales-service, Zhengda established long term business relationship with domestic and oversea friends, zhengda supply you best serive and are looking forward to be your best business partner.