Wopanga Simon Farmach (Simon FACHACH) adapanga nyali yofewa yowoneka bwino, imatha kusintha pamwamba. Nyali yopangidwa ndi yopukutira polurethane, chifukwa chomwe itha kupatsidwa mawonekedwe aliwonse, amasulira "chozizira".
Nyali yokhala ndi nyali yopulumutsa mphamvu ya mphamvu yosungidwa ndi gululi. Kuphatikiza pa malo achikhalidwe kuti chipinda chofewa chowalachi, ndizotheka kuphatikiza pakati pa zinthu zopangira mipando, ndipo ngati kuli kotheka, gwiritsani ntchito mwala.
