Burner assemblies –

Glass melting burner assemblies -
   a) Bench burner    b)Silent lathe burners   c) Ring burners
Bench burners are of National Instruments (USA make).
Lathe burners of Bethlehem make. These burners are silent while working and the flame generated is coherent (minimum flame distribution).

Hand torches are also of National Instruments, USA make which can be used with various sizes of torch tips. These torches are very light, sturdy and noiseless.