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Our company is a major manufacturer of silica (quartz) products such as high purity silica sand, silica powder, micro-silica powder, (crystal) powder and fused silica lump and powder, etc. These products are widely used as materials for (optic) glass, optical fiber, electrical, electronic, semiconductor, epoxy molding compound (emc) , paint, coating, ceramic, chemical, building, foundry, precision casting, refractory and abrasives industries etc.The detail specification as follows:1. Quartz sands (silica sands)High purity grade: Sio2: 99. 95% min-99. 8% min fe2o3: 3ppm max-30ppm max, size: 2-200 mesh high purity silica sand, quartz stoneDeliberated grade: Sio2: 99. 8% min-99. 0% min fe2o3: 50ppm max-0. 03% max, size: 2-325 mesh2. Natural crystal powderSio2: 99. 90% min-99. 99% min, size: 2-300 mesh3. Fused quartz ingotSio2: 99. 9% min fe2o3: 50ppm max, al2o3: 0. 03% max, size: 5-100 mesh4. Quartz in lumpSpecial grade: Sio2: 99. 9% min,1st grade: Sio2: 99. 8% min fe2o3: 0. 004% max2nd grade: Sio2: 99. 7% min fe2o3: 0. 008% min3rd grade: Sio2: 99. 5% min fe2o3: 0. 03% min.5. Micro-silica powderSio2: 99. 5% min-99. 0% min, fe2o3: 0. 02% max, al2o3: 0. 3% max, size: 200-800 mesh6. Fused quartz powderSio2: 99. 9% max, fe2o3: 50ppm max, size: 2-2000 mesh7. Our company can supply different kind of quartz tubes (including transparence quartz tubes and milky quartz tubes and quartz rod) . Our product quality is very good and the price is very competitive.
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