R22 refrigerant, foaming agent one-off cylinders 30b/13.6kg,50b/22.7kg; returnable cylinders 450kg/400L ,900kg/ ... Origin: Zhejiang,China (Mainland) Packaging & DeliveryPacking:10.9kg,11.3kg,30b/13.6kg,50b/22.7,40,400,800,1000kg,ISOtank ... of the order SpecificationsR22 refrigerant, foaming agent one-off cylinders 30b/13.6kg,50b/22.7kg; returnable cylinders 450kg/400L ,900kg ...