Lianyungang Dinglong Co.,Ltd. is the leading supplier of high quality Quartz glass products, Fused Silica and Silica sand. The company is located near Donghai county which is the famous hometown of crystal in China. Taking advantage of the local resource of crystal quartz, the company specialize in producing and providing Quartz glass products in the form of tube, rod, plate. The quartz glass products are widely used for lighting, heating, optics, electronics, semiconductor and scientific ranges. We also specialize in producing Fused Silica and Silica sand which is widely used in the fields of epoxy molding compound, investment casting, refractory, ceramics, silicon rubber, electrical insulator, etc. We have advanced facilities for production and inspection, ensuring to provide the superior quality products. We devote all our efforts to providing the best quality/price products and service to our customers worldwide. We stick to our pursuit of High quality, Be faithful, Cooperation, Development. We warmly welcome all customers at home and abroad to our company for cooperation.