Arc spray tooling process mainly includes: master pattern preparation, surface pretreatment, fabrication of the metal shell, frame fabrication.
关键制模工艺包括：母模制备、金属型壳制造、模框制作、背衬强化层制作、脱模以及后处理等。
Have having no of Qinhuangdao Qin metal material company? Do I want to ask a Master that are in that pay?
有秦皇岛首秦金属材料公司的没？我想问一个硕士在那的待遇？
Lathes and milling machines are equipped in this lab. Students may learn and master the metal processing art and the operation skills.
实训室设有车床、铣床和磨床，学生在本实训室通过金属切削加工实习，学习和掌握金属切削加工工艺的和基本操作技能。
The mother of nylon lock, metal lock master, K cap, hex nut, cap-shaped, butterfly hats and all kinds of washers, retaining rings, pins and so on.
尼龙锁紧母、金属锁紧母、K帽、六角螺母、盖帽形、蝶形帽及各式垫圈、挡圈、销类等。
The cast precious metal alloy or master alloy has been found to have a reduced number of hard spots and reduced silicon contamination when compared to conventional casting methods.
当与常规铸造方法相比时，发现铸造的贵金属合金或母合金具有数量减少的硬点和降低的硅污染。
The cast precious metal alloy or master alloy has been found to have a reduced number of hard spots and reduced silicon contamination when compared to conventional casting methods.
当与常规铸造方法相比时，发现铸造的贵金属合金或母合金具有数量减少的硬点和降低的硅污染。
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