1) WB91 is used for halogen filament,shock-resistance filament 2) WB61 is used for incandescent lamp 3) 99.95% W FREE SAMPLES

1) TYPE & APPLICATION:

TYPE	APPLICATION
WB91	Applied for manufacturing halogen filament,shock-resistance filament and other high termperature-resistance devices.
WB61	Applied for manufacturing coiled-coil incandescent lamp,halogen lamp and coiled-coil or triple CFL filament.
WB31	Applied for manufacturing incandescent lamp and supporting wire, etc.

2) DIAMETER TOLERANCE:

DIAMETER(UM)	WEIGHT MG/200MG		200MM WEIGHT TOLERRANCE
		0	I	II
10<d≤18	0.30-0.98	------	±3.0	±4.0
18<d≤40	0.98-4.85	±2.0	±2.5	±3.0
40<d≤80	4.85-19.39	±1.5	±2.0	±2.5
80<d≤300	19.39-272.71	±1.0	±1.5	±2.0
300<d≤350	272.71-371.19	-------	±1.0	±1.5

 The diameter range can be custom-made as per the requirements of customers'.     

     

      

      

      

0.39mm Tungsten wire for coiled-coil CFL filament