Ubufakazi bokuqhuma kwe-Shenhai
Amabhokisi okuhlanganisa angaqhumi ayizingxenye ezibalulekile ekuqinisekiseni ukuphepha ezindaweni eziyingozi. Lawa mabhokisi abonakala ngezakhiwo zawo ezinhle kakhulu zokuvala kanye nekhono eliqinile lokuvikela ukuqhuma, efana nesitsha esivalwe ngokuvikelekile.
Isetshenziswa kakhulu ezimbonini lapho ubungozi bokuqhuma budlangile, njengemikhakha yamakhemikhali neyemithi, zibalulekile ekufakweni kwezintambo nasekusabalaliseni izintambo zemishini ezindaweni eziqhumayo njengezitshalo zikawoyela ne-petrochemical. Umklamo wabo uhambisana nezindinganiso eziqinile zokuphepha, ukuhlinzeka ngesixazululo esithembekile sokuxhunywa kukagesi ezindaweni ezinobungozi obukhulu.