Qingzhou Haida Heavy Industry Co.,Ltd.Was located in Qingzhou City which has superior location and convenient transportation.Our company specializes mainly in greenhouse engineering and steel structure design,production,installation and sales.We can provide the first-class customized greenhouse project incuding the complete material and equipment for modern greenhouse building,planting and aquaculture ecological park etc.Otherwise our company business involves gold mining machine,cutter suction dredger,water plant harvester etc.Our company set up the equipment files and aftersales service system to improve product and meet the different needs of customers.To be honest and adhering client-first is our servince concept.To make first-class quality and seek development by innovation is our enterprise tenet.We provide high quality products and faultless service.We would like to invite you to create a bright future together.