Must metal is credibility, quality and price oriented manufacture. With more than 15 years in metal business, plus strict quality control and low cost operation, we can full fill our customer needs and providing competitive price. Our customer includes most of the wheel and billet makers in china and taiwan.The altib is used for refining the aluminum final product, such as billet and wheel die casting. % min max nomti 4.5 5.5 5.0b 0.9 1.1 1.0fe 0.30 0.10-0.17si 0.20 0.10-0.17v 0.20