Việt
thuỷ tinh flin quang
Anh
optical flint
flint
flint optical glass
optical flint glass
Đức
optisches Flintglas
Flint optisches Glas
Pháp
verre d'optique flint
flint,flint optical glass,optical flint,optical flint glass /INDUSTRY,INDUSTRY-METAL/
[DE] Flint optisches Glas; optisches Flintglas
[EN] flint; flint optical glass; optical flint; optical flint glass
[FR] flint; verre d' optique flint
optisches Flintglas /nt/SỨ_TT/
[EN] optical flint
[VI] thuỷ tinh flin quang