... Fine quality 4)a crown:16.7mm, 5)wire dia:1.6mm staple Nail book needle size: 10 #, unified ( ... /15, 23/17, 23/19, 23/23,staplesSupply staples series, hull paperclips series, triangle paperclips series, butterfly ... including the content of Fe in 99% around. Staples have two kinds, one kind is made of iron ... side border, C ring nails, c staples, C nails.industrial staples nails C RING STAPLE(SC-660)