... volumes available Introduction:1. This Refrigerant Gas Cylinder/welded steel cylinder is used for refilling refrigerant gas and widely ... manufacturing and testing is in accordance with WELDED STEEL GAS CYLINDER DB5100, CYLINDERS SAFETY MONITORING PROCEDURES.(EN13322-1:2003) ... R22, R404A, R410A, R407A, R407C, R408A, R409A, R413A, R507, R427A, R428A,etc.12.Packing: paper carton Refrigerant Gas Cylinder