500ml Fertilizer Nitrogen Fixing Flask Double Connecting Sphere Triangle Flask

Specific physical and chemical properties are as follows: Silicon content: more than 80% Strain temperature: 520 ℃ Annealing temperature: 560 ℃ Softening temperature: 820 ℃ Refractive index: 1.47 Transparency (2mm): 92% Elastic modulus: 67KNmm-2 Tensile strength: 40-120 Nmm-2 Stress optical constants of glass: 3.8xl0-6mm2/N Processing temperature (104dpas): 1220 ℃ Usually the product will be sent in 2-5 working days and takes about 3--9 business days to reach you

• GG-17 high temperature glass is a kind of high borosilicate glass with excellent physical and chemical properties, which fully conforms to IS03583 international standard. Its silicon content is more than 80%, and its internal structure stability is very good. Therefore, GG-17 glass has better mechanical and chemical properties. Because of its low thermal expansion coefficient, it can better withstand higher temperature difference and has good lamp flame addition. It is a good glass material for