Shekarar kafuwar 1991. Shigo da kayan gini masu alama da tsarin: el. RAYCHEM dumama igiyoyi masu dumama, shuke-shuken hasken rana, tsarin dumama ruwa na hasken rana, masu tara iska mai zafi, kwalta + murfin takarda, bel, shingles, roba mai ruwa, paving, nano polymers, kaset na fadada, kofofin wuta ...