机器模具铸造工和核心制造者设立，调整和经营各种制模机和制芯机，制造砂，陶瓷模具和核心。
Machine mouldmakers and coremakers set up, adjust and operate various mouldmaking and coremaking machines to make sand and ceramics moulds and cores.
对刮痕强度试验机进行适当的改进，就可测量芯砂的冲击韧性，并使一机两用。
The scratch strength tester has been improved in the paper, which can measure the impact toughness and has two uses.
安制芯工艺分：自硬砂制芯设备、热芯合制芯机、覆膜砂制芯机、冷芯合制芯机。
Safety system core technology: self hardening sand core equipment, hot core and core machine, coated sand core machine, cold core and core machine.
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