1.Substitue for R12. 2. Purity not less than 99.8% 3. Packing 30lb/13.6kg; 926L/cylinder; ISO-Tank 5. OEM 1. Competitive price with good quality in China.2.Have our own factory.3.Our main products R22,R134A,R12,R404a,R407C,R410,R502,R406 etc, 4.The best after-sales service.5.OEM6. Cans: 300g three-piece tinplate can ,340 two-piece tinplate can(DOT) , 500g two/three-piece tinplate can , 1000g two/ ...