Product Name: Customized Quartz Glass Distlling Flask with Quartz Ground Joint Stopper Type: Distillation Flask Capacity: 500ml Certification: RoHS Disposable: Non-Disposable Purity: 99.99% Min Softening Point: 1683 Degree Annealing Point: 1215 Degree Defoamation Point: 1120 Price: From Producer, Competitive Resistant: High Temperature, High Pressure Trademark: yukang Transport Package: Outside Wooden Cases, Inside Carton Case with Foam Specification: SGS Origin: Donghai, Jiangsu, China HS Code: 7002319000 Product Description Specificatins:Three outlets quartz glass flask round bottom1, quartz glass cylinder2, OEM is ok3, long time to use4, ISO9001-20005, nice appearanceAdvantage of the quartz glasss tube:1. High temperature resistant, 1100 degree.2. Corrosion-resistant3. Good thermal stability4. Good transparency for light5. Good electrical insulationAfter-Sale service:1), 24 hrs service for customers.2), quality issue, we accept reworking if quality is not reach your requirements.3), sample available for free.4), OEM service acceptable. Welcome your artwork.Your design and drawing are accepted, we can make as your requirement. Waitting for your special specification to offer.PhysicalProperties(g/cc)Density20°Ckg.m-32.2DegreeofHardnessMoh'sScale5.5-5.6Softeningpoint(degree)1683Annealing point1215Defoamation Point1120Quartz products, such as quartz tube, quartz rod, quartz plate, quartz banger nail, quartz ground joint, quartz ball head, quartz boat, quartz flange, quartz crucible and quartz vertical furnaces, quartz tank,quartz lab wares etc. are essential to make silicon slice in the semiconductor. Our quartz products which are produced in dust-free plant have the typical characteristics of high purity, good temperature resistance, long lifespan and so on.Customized quartz products are available.