A, matters needing attention:1, all kinds of precision casting wax mold surface defect is repaired, flash, parting line is clean.2, lost wax casting according to the technological requirements, the examination of the size, shape, should use fixture with the fixture.3, die, in accordance with requirements cannot damage the wax models.Wax crumbs under 4, should be put in dish in, keep the workbench and site clean.5, to timely on the "identity card" logo. Second, the accuracy requirement and cost:Lost wax casting foundry method of precision castings, initial investment are not uniform and productivity, the economic benefits of the final also have differences.Therefore, to do more, faster, better, the province, all aspects should give attention to two or morethings arrives.Selected for dealing with the casting method carries on the preliminary cost estimate, to determine the economic benefit is high and can ensure the requirements of the casting foundry method.