铝锭双面铣床
aluminium ingot double face milling machine
双轴平面仿形铣床
double-spindle contour copying milling machine
双面双弧
double side double arc welding
双面双密度软磁盘
double side & double density floppy disk
2L-FCCL双面挠性覆铜板
2L-FCCL double-side flexible copper clad laminate