hydraulic pipe fittings,made by steel,brass,aluminium or stainless steel, surface would be Zinc or Nicel plated,or oxidation.full range.
we manufactured many kinds of hydraulic pipe fitting,which was used in automobile,engineering machinery,lathe,agriculture machines,mining,chemical,textile,etc.. Full metric and inch dimensions, material could be brass, steel,aluminium or stainless steel, surface may be plated by Zinc,Nickel, or oxidation.