replacement of r12 and r134a

R134a valve core Type Valve Core whatsapp:+86-13111532426 skype: regina2011521 china_becky@126.com whatsapp:+8613731087225 ACPARTS68@GMAIL.COM suppliers of 39PCS Air Conditioning Valve Core A/C R12 R134a Refrigeration Tire Valve Stem Cores Remover tool 39PCS Air Conditioning Valve Core A/C R12 R134a Refrigeration Tire Valve Stem Cores Remover tool Air conditioning valve core Car R12 R134a air-conditioning accessoriesIt applies to the replacement

...R134a refrigerant is commonly used in various cooling and air conditioning applications. It was originally developed to replace R12 in car AC systems. It has also been used to replace refrigerants R12 and R500 in coolers. It is also used as medium temperature systems in residential buildings and commercial contexts. R134a...