ASME SB108 pdf download SPECIFICATION FOR ALUMINUM-ALLOY PERMANENT MOLD CASTINGS 3.1.1 permanent mold casting —— a metal object pro-duced by introducing molten metal by gravity or low pres-sure into a mold constructed of durable material，usuallyiron or steel, and allowing it to solidify. 3.1.2 seni-permanent mold casting – a permanentmold casting which is made using an expendable core suchas sand. 4.Ordering...