The initial mould is the final molding preparation for the bottle.
Glass bottle die life with low tin vermicular iron and vermicular iron aluminum is highest, but low aluminum smelting and casting technology of vermicular iron is relatively complex, contains pearl size rarely, adverse to the resistance to wear, therefore, with a low tin vermicular iron production mold is more appropriate. Its service life and the comparison with cast iron HT200 data: using low tin vermicular iron manufacturing beer glass forming dies, minimum use of 39 days, the production of beer bottles, 367000, the highest use of 87 days, the production of beer bottles, 820000, an average of 548400 per vice mold production of beer bottles.