Yokohama Rubber Develops Car Air Conditioning Hoses For Refrigerant HFO-1234yf on August 2, 2018 in Products Yokohama Rubber Co. Ltd. (TYO:5101) recently announced that it has developed a new series of car air conditioning hoses that…... Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here Continue Reading