... female,male, bolt and nut, washer,union,spring 2)Carbon Steel ,Aluminium, Brass, SS. rubber 3)OEM fitting for hose,tube Material: ... , spring etc ,which are used for stainless steel brake hose, brake and fuel pipe, brake and clutch hose, or fittings.Commodityhose fittings.MaterialMild steel ... cold heading; casting,OtherMetal accessories, rubber accessories, plastic accessories fitting for hose and tube