no-draft forging

... no-draft export ==> 无外汇出口,不结汇输出 no-draft forging ==> 挤压模锻 no-draft import ==> 不结汇输入,无外汇进口 ...

 prescision drop forging

... open-die forging 精密模锻 prescision drop forging 挤压模锻 no-draft forging 冷拉 ...