缩颈翻边组合机
necking and curling combinnation machine
V型零件翻边
flanging of V-shaped sheet metal parts
多孔翻边
multi-hole sheet flanging
发动机翻转工具组件
engine turning tool group
翻边
flanging
turn edge
flange
burring
switching
Circumferential strain dispersion effect
selvedge trundown
edging
riveting
Cuff