汽车空调管系列（四层管、五层管） AUTOMOTIVE A/C HOSE SERIES 用途： 适用于输送冷媒R134a的各型号汽车空调用橡胶管 特性： 采用耐天候良好的特种橡胶制造，并采用耐超低冷 媒渗透性能和低湿渗透性能的尼龙阻隔材料作为隔 离层，外观为黑色光面橡胶管。执行QC/T664-2000 标准，不仅仅满足国内外各大汽车制造厂商的标准要 求，而且更能体现着利通公司对改善人类生存环境的 关注和不懈努力 APPLICATIONS: Rubber tubes for various types of automobile air conditioner suitable for conveying refrigerant R134a FEATURE:This hose is made of special weather resistant rubber compound, Isolation layer is made of nylon barrier material resistant to low refrigerant permeation and low moisture permeability. Hose surface is black smooth. Hose quality subject to QC/T 664-2000 standard, not only meeting the standard requirement of big domestic and foreign automobile manufacturers, but also to embody Letone's attention and unremitting efforts to improve the living environment of mankind.