... pressure die casting/die casting/gravity casting)-machining-surface treatment-delivery3.CertificateQuality system ISO 9001:20084.Material ... drilling machine, numerical lathe, all types of lathe. 7.Surface finish processPolishing,sand blasting, Heat treatment, painting, Powdercoated,anodizing,electroplating ... Xi'an Rongbao casting Co.,Ltd.is a special aluminum alloy sand casting;brass and aluminum Low ...