... .6mm staple Nail book needle size: 10 #, unified (24/6), 26/6, thick layer ShuDing: 23/8, 23/10, 23/13, 23/15, 23/17, 23/19, 23/23,staplesSupply ... (24/6), 26/6, thick layer ShuDing: 23/8, 23/10, 23/13, 23/15, 23/17, 23/19, 23/23, American book needle B8, B88.Book needle specification ... nails, c staples, C nails.industrial staples nails C RING STAPLE(SC-660)