supply of refrigerant gas r 407c conforming to is : 15548/2005 or latest , refrigerant gas r 407c conforming to is : 15548/2005 or latest in non-returnable cylinder h aving the capacity of 45 kgs gas, make : floron, srf, mafron, ecorane, refron, dupont. refrigeration g as r-407c comprising with 23% of r-32, 25% of r-125 & 52% of r-134a, suitable for acrmpu coaches refrigerant gas r 407c filled in company sealed refrigerant cylinder of 45 kg capacity each, indicating cyli nder weight, net weight of the refrigerant gas, gross weight and date of filling of refrigerant gas. the firm h as to submit test certificate at the time of delivery. ]