压扭成形
Compression-torsion forming
多点拉弯成形
multi-point bend-stretch forming
多角拉弯成形
multi-angle draw-bending forming
拉弯成形性
stretch-wrap bending formability
stretch-bending formability
冷弯成形技术
Cold bending forming technique
绕弯成形
Rotary-draw Bending
rotary draw bending
rotary draw bending process