Feature:
1. Stainless steel material, sturdy and durable
2. Matte spray paint, anti-rust, beautiful
3. Different types of trolleys for liquid nitrogen tanks of different sizes
4. 3/4/5 lockable wheels, easy to move

Applications:
Roller base A with 3 wheels: for YDS-15, YDS-20, YDS-30, YDS-35, YDS-30-80, YDS-35-80, YDS-30-125, YDS-35-125;
Roller base B with 4 wheels: for YDS-65-216, YDS-95-216, YDS-115-216;
Roller base B-47 with 4 wheels: for YDS-47-127;
Roller base C with 5 wheels: for liquid nitrogen containers YDS-115-216, YDS-145-216, YDS-175-216.