... casting tech ‘Vertical upward continuous casting’ in 2006, by using this tech we manufactured new kindof cast iron profiles --- ... railway vehicle, oil machine,engineering machine,auto parts,compressor, hydraulic and pneumatics,chemical pump, machinetool,metallurgical equipment etc.Meantime, ... ring,ADI bushing,sealing ring,suction pipe etc. By using our profile, the workinglife of our products will be ...