. Materials: 6061 Aluminium alloy.. Advantage: safe: strict technical standard,safety test for every cylinder. lightweight,corrosion-resistant, perfect treatment for surface interior and exterior.. Application: Industrial,speciality and calibration gas,beverage CO2 gas,medical gas,diving sport,paintball game etc.. Specification: GB, EN, DOT, ISO. Color, thread,valve and fittings upon request.. Proper packing or upon request.. Third party inspection available.. Form A, Form E available
