Shenhai Kuphulika-Umboni
Kuwala kotsimikizira kuphulika kwa 50w komwe kumagwiritsidwa ntchito m'malo oopsa komwe kuli mpweya woyaka ndi fumbi, zomwe zingalepheretse arcs, zipsera, ndi kutentha kwakukulu komwe kumatha kuchitika mkati mwa nyali kuchokera pakuyatsa mpweya woyaka ndi fumbi m'malo ozungulira., motero amakwaniritsa zofunikira zoteteza kuphulika.
