免费a级毛片无码免费视频首页,人妻精品久久久久中文字幕69,久久人人爽爽爽人久久久,无套内射在线无码播放

Fused Silica Cullets

Fused Silica is made of high purity Quartz Sand by electrically fused (fusing temperature up to 1800-2000℃) in Electric Arc Furnaces , then the Crystalline Quartz Sand transformed into Amorphous Silicon Dioxide (transparent , inserted few fogs ) .
       Fused Silica  has an extremely low coefficient of thermal expansion and a very low thermal conductivity , high resistance to thermal shock as well as excellent chemical stability .
       According to industry purposes , Fused Silica is sorted to different grading , utilizing our special machineries and technologies ,then crushing , sieving , magnetic separating ,thus as raw materials widely used for photovoltaic , Integrated Circuit ,EMC ,Refractories , Technical Ceramics , Investment Casting etc industries . 

Main Applications 

Electrical Insulators & EMC (Epoxy Molding Compound)
       Precision Casting & shell casting 
       Refractory , Ceramic &  glass materials 
       Chemical Compositions

Physical Properties : 

Appearance: Transparent cullets , Grains or White Powder
       Specific Gravity: 2.2 
       Hardness( Mohs): 7.0 
       PH: 5-7 
       Size Available : cullets , grains or powders
       0-100mm, 5-50mm, 8-5mm, 5-3mm, 3-1mm, 1-0mm, 1-0.5mm, 0.5-0.2mm,0.2-0.1mm, 0.5-0.1mm, 
       -4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh, -50+100mesh,-100+200mesh ,  -120F,-200F,   -325F,  -600F.
       For more information about our p.s.d. Or chemical compositions , please contact us .