Brake bundy tube Low carbon steel tube Bundy tube,Copper tubing Standards: ASTM A254, SAE J527. Type: Double wall and single wall. Plated: Yellow zinc, white zinc, copper and PVF. Length: Available in coils, straight boom lengths, cut-to-length, or fabricated assemblies Using: brake line, brake tube, brake pipe, fuel line, transmission line, air conditioning tube, condenser, compressor, evaporator etc. Feature: Complex structure hoses are available, in some cases a sample or drawing needed. Strong developing and researching ability according to samples or drawings.Original Equipment quality. Six years average life at least Output strong braking power, Every hose is 100% pressure testing at 3500PSI. 2800 KST numbers cross-reference 4000 OE numbers. Cross reference Delphi, Wagner, TRW, Reybestos, CEF etc 83 famous producersí» numbers. Suit American, European and Asian (Japanese, Korean and Chinese) etc all passenger vehicle, light commercial vehicle and classic cars series vehicle with hydraulic brake system.