Please help, Tube subsitute for 6sn7

I have a Supratek Sauvignon. Can I use the Shuguang Treasure 'Black Bottle' CV181-Z in place of the 6SN7.
Have is their specs.
Shuguang Treasure Series Tube Specification:
Model Number:
CV-181Z
Distributed by: www.grantfidelity.com
Filament Heating:
UH 6.3V
IH 0.6a
Capacitance
No.1
No.2
Input capacitance
2.2
2.6
pF
Output capacitance
0.7
0.7
pF
Muller capacitance
4
3.8
pF
Maximum Ratings: (Class A1, single ended)
Ua 450V
Pa 5W
UH-k
+/-100V

Ik
20ma
Pa(No.1+No.2)
7.5w

Rg1
mohm
DC Parameters:
Ua90 250V
Ug 0-8V

Ia
10
9
mA
Gm
3
2.6
mA
u
20
20
ri
6.7
7.7
Kohm
Ia (when Ug=12.5V)
1.3
mA
Ug (when Ia=10uA)
-7
-18
V