铸造材料

熔模精铸常用浇注方法有哪些?

待解决2回答170点击
熔模精铸常用浇注方法有哪些?
离问题结束还有
举报
收藏
应该提高室温,必要时CO2应该加温吹入
how to spot a cheater click here find an affair
I cheated on my girlfriend link what makes women cheat
支持 反对 举报
1)热型重力浇注
2)真空吸气浇注
3)压力下结晶
4)定向结晶(定向凝固)
marriage affairs dating a married man website
I cheated on my girlfriend online what makes women cheat
支持 反对 举报
热型重力浇注方法
真空吸气浇注
why wife cheat why married men have affairs i want an affair
open link click
click here married men who cheat reasons married men cheat
支持 反对 举报