seamless steel gas cylinder We are a professional comprehensive enterprise integrating manufacturing and trade. We have two wholly-owned subsidiaries and five production factories.We are one of the main supplier in China to export seamless steel gas cylinders,CNG cylinders for vehicle,high purity gas,valves and other related products.Our products are widely exported to Middle East,Southeast Asia,Africa,America and some Europea countries.With high quality and best service,we have got praise from all our customers over the world. Our seamless steel gas cylinders is ideal for holding permanent gases and high pressure liquified gases such as oxygen,hydrogen,argon and carbon dioxide,which are widely used in chemical,mechanical,medical,construction industries and so on. Specifications: 1).Water capacity: 5L-110L 2).Outside diameter:140mm,204mm,219mm,232mm,267mm,279mm,325mm 3).Working pressure: 150/200Bar Testing pressure: 250/300Bar 4).Material: 34Mn2V,30CrMo,34CrMo4 5).Standard: GB5099,ISO9809,EN1964,DOT-3AA,JSB8241,NZS5454,IS7285 etc. We can provide you: - supper high quality gas cylinders - lowest price in the market - fast delivery (2-4 weeks).