... ,use for the air brake of truck,trailer,tractor and so on. Trailer air brake hose,Recoil hose nylon ... tube,Suzi coil air brake tube:• Material:PA,PU etc ... or others • Protection:spring or plastic • O.D. of turn:110,90,80,70,60,50mm etc. • Helix ... , PA/PU air brake coils,spiral hose etc. Suzi coil air brake tube Trailer air brake hose Recoil hose nylon ...