we are a professional manufacturer in producing the refrigerant gas , our factory established in 2005 years , engaged in refrigerants R&D ,Manufacturing and sales,we have 3 manufacturing base,1 R&D center. The main products are R22 /R134a /R600a/ R410/R290 /R415A/ R415B/ R125/ R32, 4 series ,5 series ,hydrocarbon series etc; and the environmental protection refrigerants. Our products quality is excellent good , all meet AHRI Standard 700Looking forward to hearing from you soon