1> OEM service 2> ISO 9001-2008 quanlity control 3> Trial order is acceptable 4> sample can be offered ... R12,R22,R410 and R134a. Widely used in motor vehicles, air conditioners and industrial refrigeration equipment.Appearance: smooth surface. Structure: middle ... of specifications such as automobile brake hose, power steering hose, air conditioner hose, oil-cooling tubes, bundy pipe, nylon tubes,teflon ...