Shenhai Kuphulika-Umboni
Kuwala kotsimikizira kuphulika kwa 200w komwe kumagwiritsidwa ntchito m'malo oopsa komwe mpweya woyaka ndi fumbi zimakhala, 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.