Refillable cylinders serve as core pressure‑bearing containers for the storage and transportation of industrial gases. Different from disposable cylinders, they allow repeated filling and cyclic utilization. Widely adopted for storing and delivering high‑purity helium, rare gases, refrigerants and other industrial gases, they are regular supporting equipment for industrial production and import‑export trades.

Common‑size refillable cylinders available on the market include 5L, 10L, 40L and 50‑L versions, suited for small‑and‑medium‑sized gas‑consuming equipment as well as centralized gas‑supply systems for large‑scale industries. Manufactured in strict compliance with Chinese national standard GB5100 for gas cylinders, each unit undergoes multiple quality‑inspection procedures such as hydrostatic testing, air‑tightness examination and non‑destructive testing before delivery. The cylinders feature robust structure, outstanding sealing performance and enhanced durability.

Qualified refillable cylinders require periodic official inspections. Continuous service is achievable via regular testing and maintenance, greatly cutting enterprises’ long‑term purchasing costs and bringing remarkable cost‑performance. Moreover, these cylinders conform to global trade criteria. Supported by comprehensive safety‑inspection systems, they meet gas‑usage requirements from domestic and overseas industries including general industries and precision‑manufacturing sectors.

Shanghai Zhonglanhui Gas supplies refillable cylinders of various specifications with rigorous manufacturing standards and consistent quality. Relying on self‑owned production bases and a global sales network, we provide worldwide clients with well‑standardized, highly‑compatible refillable cylinders and supporting gas‑filling services.