R415b R12 substitute R134a replacement R502 replac

R415b, The goods we produces and sales are as follows: R12, R22, R134a, R600a, R152a, R141b, R142b, R143a, R123, R124, R125, R32, R401a, R402a, R404a, R406a, R407c, R408a, R409a, R410a, R415b, R502, R507, MR12, MR134a, MR502, HFC-227ea, HFC-236fa, HFC-245fa etc. As a prefesstional refrigerant manufacture, we offer good quality products with reasonable prices, we believe that you won,t regret let us become your speciality and trustful supplier. Waiting your inquiry.