♦ An karbe ta hanyar fasahar Amurka, kwampreso mara amfani da mai ba tare da kulawa ba.Karancin amo, nauyi mai nauyi, jinkirin hauhawar zafin jiki da babban inganci
♦ Faransa ta karɓo daga shigo da sieve kwayoyin halitta.Fasahar cikawa ta musamman tare da sha mai ma'ana, ƙirar tsarin hasumiya da ingantaccen sarrafawa don tabbatarwa
♦ Akwai 5 matakin tacewa tabbatar da tsabtar iskar oxygen ya kai matakin likita a cikin iskar oxygen.