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Magnetic Separator and Method
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Method and apparatus for the manufacture of large optical grade SiO2 glass preforms
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Combination roll-type magnetic and electrostatic separator and method
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Modified close fraction batch process for purification of sio
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Leaching apparatus
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Manufacture of preforms for energy transmitting fibers
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Burner for manufacture of fused quartz or fused silica ingots
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Control device for filment winding
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Method for the manufacture of hollow fused quartz or fused silica ingots
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Apparatus for forming an ingot in a rotating housing
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Apparatus for manufacturing hollow and solid ingots
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Method for manufacturing hollow and solid ingots
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Method for the conversion of crystalline silica raw materials into amorphous silica
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Method and apparatus for conversion of crystalline silica raw materials into amorphous silica
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