... refrigerants R12,R22,R410 and R134a. Widely used in motor vehicles, air conditioners and industrial refrigeration equipment.Appearance: ... and piping, plumbing pipe fittings. There are more than 300 kinds of specifications such as automobile brake hose, power steering hose, air conditioner ... hose, oil-cooling tubes, bundy pipe, nylon tubes,teflon hose and hose assembly. We ...