Shenhai Kuphulika-Umboni
Mogwirizana ndi zofuna zapadera ndi zoopsa za minda mafuta, chigawo chochokera ku makumi atatu mpaka makumi asanu m'mphepete mwa chitsime chimawonedwa ngati chofunikira.
Komabe, mukuchita, pafupifupi zida zonse zamagetsi zomwe zidayikidwa pachitsimepo sizingaphulike. Muyezo uwu umapewa zovuta zosafunikira zomwe zimagwirizanitsidwa ndi kusinthanitsa zida zomwe sizikugwirizana ndi zomwe sizingaphulike..