You may confusion why we always can provide a lower price than competitors and moreover, keep the price stable. The huge helium inventory and keeping low but reasonable profits are the keys to maintaining price low and stability, even in the volatile market.
For the long-term order, in order to keep the price stable, We can negotiate a price every quarter.
Portable and disposable helium tanks: 2.2L , 3.3, 7.1L, 13L, 22L with low pressure
Reusable tank: 20L, 40L, 50L in high-pressure 150Bar, 200Bar ,230Bar, 300 bar.

Obsolutely Not, In order to establish a long-term and stable cooperative relationship, We only keep the low and reasonable profits, but this does not mean low quality. We are aware of how important quality is to us, We will never produce the low quality balloon helium tanks, even the profits is very low. We promise money back for all the quality issues.
Tank Certificated by EN11118 and DOT39; Helium: 99.99% or helium:79% + Oxygen: 21%