During the construction process, what should the nitrogen bottle operation be equipped with specially? (Multiple choice)
A . Check valve
B . Nitrogen valve
C . Goggles
D . Antifreeze gloves
Answer: BCD
During the construction process, what should the nitrogen bottle operation be equipped with specially? (Multiple choice)
A . Check valve
B . Nitrogen valve
C . Goggles
D . Antifreeze gloves
Answer: BCD