Graphite Casting Ring ADVANTAGES High Precision CNC Machined High Strength and Hardness High uniformity in Porosity Long Service Life Produce excellent billet surface and Yield APPLICATIONS Aluminium Billet Casting Mould Size: from 3” to 15” Size Customisable from Drawings PERMEABILITY TEST Every graphite ring produced by ALm has been strictly tested for whole ring permeability. … 閱讀全文 石墨環