Located in Shanghai, SEFIC is a professional supplier of gas and gas equipment. Founded in the 90s, the company has already accumulated enough experience and became one of the best suppliers of all kinds of gas and gas equipment. Besides, it is one of the earliest in the country to gain the License of Pressure Vessel Type A2 and C2, ISO9001 and ISO14000 Certification, Private Hi-Tech Enterprise, Hi-Tech Enterprise, and Special Equipment Manufacture Permission. We almost can supply all kinds of gas cylinders with TUV, TPED, CE and DOT certification.