tight-flask molding是什么意思

用法例句

This article introduced brass tacks of cast steel production line technical innovation based on no-bake resin bonded sand removable flask molding to adoptd equipment made in one′e country,and expounded technical sticking point and gist of skill control.

介绍了我厂采用国产设备 ,进行铸钢自硬树脂砂脱箱造型生产技术改造的基本情况 ,阐述了生产线的技术关键和工艺控制要点。