穿空针 穿孔针

holeformingpin  detail>>

穿空针

hole forming pin  detail>>

穿孔针

hole forming pin pecker piercing needle punch pin  detail>>

针穿孔

needle perforation  detail>>

穿孔针，接续器

pecker  detail>>

牙针穿孔器

pin punch  detail>>

针穿孔寄存器

pin punching register pinpunchingregister  detail>>

穿孔针调位装置

mandrel turner  detail>>

用一根粗针穿孔

prick holes with a thick pin perforate  detail>>

针穿孔记录系统

pin punching system pinpunchingsystem  detail>>

穿空

see-through  detail>>

空针

drostitch  detail>>

孔针

vent needle  detail>>

针穿

needle  detail>>

半穿空

semi-perforations  detail>>

穿空楔

spall wedge  detail>>

点孔针

dotting needle  detail>>

气孔针

breather prod  detail>>