Features:
1.small and lightweight.
2.easy to carry.
3.static liquid nitrogen evaporation losses low.
4.the use of econonic

Technical data:
Model: YDS - 30
capacity: 32L
Caliber: 50
Outside diameter: 440mm
Height: 670mm
Weight: 1.45 Kg
Bucket: 3
Demeo: Static liquid nitrogen storage life: qualified 254 days, grade a 270 days, classy article 295 days