Air-tight sintering furnace for the production of a quartz prefo

Apparatus for casting silicon with gradual cooling

Apparatus for forming a porous glass preform

Apparatus for making polycrystalline articles

Apparatus for making quartz glass crucibles

Apparatus for making quartz glass crucibles

Apparatus for manufacture of a silica optical fiber

Apparatus for manufacturing hollow and solid ingots

Apparatus for producing a foamed-glass or foamed-ceramic strip

Apparatus for silica crucible manufacture

Carbon coating for a starting member used in producing optical w

Furnaces for fused silica production

Method for making a blank from material, particularly for an...

Method of making quartz glass crucibles, and apparatus carrying

Method, apparatus and burner for fabricating an optical fiber pr

Optical fiber soot synthesis apparatus

Raw material supplying device and process

Reactants delivery system for optical waveguide manufacturing

Support member for an optical waveguide preform