... aluminum sand casting-anodized mast base for yacht Sand casting has four type process for choosing, green sand casting, resin sand casting, shell casting ... our customers. ServiceOEM/ODM are welcomeMaterial#Aluminium Alloy( AlSi7Mg, AlSi12, AlSi10Mg,AlSi6Cu4 AlSi12Cu ),#Grey ... ), #Vermicular iron, #Carbon Steel,alloy Steel#Copper AlloyProcessSand casting, shot blasting, heat treatment, cnc machining ...