1.compressor part/air compressor part 2. Made by Continuous Cast Iron Tube 3.High Density, ... ’ in 2006, by using this tech we manufactured new kind of cast iron profiles ---Cast Iron Hollow Bar , which have been ... industries,such as railway vehicle, oil machine,engineering machine,auto parts,compressor, hydraulic and pneumatics,chemical pump, machine tool,metallurgical equipment etc.Meantime, we ...