Commodity2005200620072008
Nails, tacks, drawing pins, staples (excl. of 83.05) & sim. arts., of coppe ... $815$4,173$1,757
Washers (incl. spring washers) of copper $7,336$574 
Non-threaded arts. (e.g., rivets, cotters), of copper (excl. of 7415.10 & 7 ...   $631
Threaded arts. of copper (excl. of 7415.33)$3,546  $3,228
Total$3,546$8,151$4,747$5,616