... : good softness and flexibility,environmental and nontoxic material. Spring air hose: • Material:PA,PU etc. • Hose size(OD*ID): ... *9,12*8,8*1, 4...22mm or others • Protection:spring or plastic • O.D. of turn:110,90,80,70 ... :6Mpa(=60Bar) • Fitting:With two M16,M18 ,M22 ,1/2"fittings etc. or no fitting ----------------------------------------------BlueMob.: +86-13655751779Tel: +86-0575-87618856Fax ...