zinc alloy die casting polishing 1.gear boxes, enclosures, die castings, 2.high pressure die castings, 3.ship accessory zinc alloy die casting polishing: Feature:MaterialAluminum/Zinc Processsand casting, gravity casting, low-pressure die casting, high-pressure die casting. CertificateISO9001:2008 Certificate Material StandardADC12, ADC10,A380 Specification drawings Pro/E, Auto CAD, Solidwork, ...