Ngokuthembeka okuvelele, ukufakwa okulula, nokuguquguquka kokusebenza okubanzi, Ukufakwa kwamapayipi okuguquguqukayo kuyaqhubeka nokudlala indima ebalulekile ekuqinisekiseni ukuthuthwa okuphephile nokusebenza kahle kwezimboni eziningi emhlabeni wonke yonke.