Place of Origin : Zhuhai,China

1. Circular trough:
A: Inner diameter: 160 mm
B: Depth: 116 mm
2. Ball stopper specification:
A: Diameter of ball: 12.7 mm±0.05 mm; Sign height: 92 mm±0.25 mm.
B: Diameter of ball: 6.35 mm±0.05 mm; Sign height: 90.3 mm±0.25 mm.　
3. Power supply: AC 220 V±10%, 50 Hz
4. Sample tube: four pieces in a set.
The diameter of effuse tube is: φ10 mm±0.025 mm, φ5 mm±0.025 mm,
φ4 mm±0.025 mm and φ3 mm±0.025 mm.
5. Temperature controlling range: room temperature~90 ℃.