Adjustable fume tube burner

Adjustable fume tube burner

Method for manufacturing glass-fine-particle-deposited body and method for manufacturing glass base material

Method for manufacturing glass-fine-particle-deposited body and method for manufacturing glass base material

Burner and method for the manufacture of synthetic quartz glass

Burner for fabricating optical fiber preform

Method for manufacturing optical fiber base material

Burner assembly for producing glass preforms and corresponding production process

Method of forming optical fiber preforms

Burner and method for the manufacture of synthetic quartz glass

High-purity silica powder, and process and apparatus for producing it

Substantially dry, silica-containing soot, fused silica and optical fiber soot preforms, apparatus, methods and burners for manufacturing same