Located in Donghai, Donghai Jingruida Quartz Products Co., Ltd. specializes in the development, manufacture, marketing and after-sales service of quartz products. We have strict internal management systems and highly talented technicians who have rich working experience in quartz products. In addition, we have set up several departments, including R&D, Production, Sales and Service. Guaranteeing stable and timely supply, credible quality and sincere service, our products sell well in both ...