Shenhai Kuphulika-Umboni
Kuunikira kosaphulika kwa 30w 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.
