Our company is located in Lianyungang, Jiangsu, China. We are specialized in the designing, manufacture and marketing of all kinds quartz products such as quartz ingot, transparent quartz glass tube, oxidized quartz tube, quartz plate, quartz crucible, quartz rod, etc. all of which are widely used in electric light source, semiconductor, optical, photovoltaic, chemical industries, etc. We are located in national coastal economic zone, having very convenient sea, land and air ...