Lianyungang Haisheng Quartz Tech. Co., Ltd. is located in Lianyungang City,Jiangsu Province of China. We have 3 lines for making clear fused quartz glass tubes and more than ten of equipments for producing gas melted big diameter and thick wall thickness quartz glass tubes. Besides of making quartz tubes (including milky quartz glass tubes and quartz rods and quartz capillary) we also produce many kinds of quartz products for labs(laboratories) such as quartz crucible, quartz disc/disk, quartz plate and other abnormity quartz products. Our products mainly listed as below: Transparent clear fused quartz glass tube Milky fused quartz glass tube Transparent clear fused quartz glass rod Quartz glass capillary Quartz glass apparatus Quartz glass plates and discs/disks Quartz glass crucible Lab/laboratory quartz products Big diameter quartz glass tube Uv stop quartz glass tube (ultraviolet stop quartz tube) Quartz/crystal bowls and plates