Butper-Nickel Buper Weelka Weelka oo dhan ayaa leh wax qabad wanaagsan oo shaqeynaya, waa fududahay in Weld, oo aysan u nugul u lahayn hudheelka walaaca. Tan waxaa loo isticmaali karaa in lagu biiro ama la jaro durdurrada dareeraha. Waxaa loo qaabeeyaa laba qaybood, oo kuxiran 90¡tã khadka ugu weyn. Hawlahan waxaa ka mid ah wax ka qabashada kiimikada, xarumaha daaweynta qashinka, tas-hiilaadka patrochical, meelaha lagu abaabulo, papernic, dhirta gaaska, geedaha gaaska iyo xitaa dhirta korantada nukliyeerka.