... R12,R22,R410 and R134a. Widely used in motor vehicles, air conditioners and industrial refrigeration equipment.Appearance: smooth surface. Structure: ... -aging) Outer:NBR & PVC (the smooth cover layer) Packaged: One piece in a polybag. Temperature range: –30°C—100°C ... of specifications such as automobile brake hose, power steering hose, air conditioner hose, oil-cooling tubes, bundy pipe, nylon tubes, ...