分析了覆膜砂在热作用下对型砂强度、断裂表面和变形的影响。

Effects of heat performance on strength? Fractures and bending of coat sand were analyzed.

youdao

分析了覆膜砂在热作用下对型砂强度、断裂表面和变形的影响。

Effects of heat performance on strength? Fractures and bending of coat sand were analyzed.

youdao