Amapayipi ensimbi asetshenziswe ngaphambilini asetshenziswa kabanzi ekwakheni, ekufakeni amapayipi, ezimbonini zamakhemikhali, kwezolimo, nakweminye imikhakha, lapho ikhwalithi yawo ithinta ngqo ukuphepha kwephrojekthi kanye nokuphila kwayo. Ngakho-ke, ukulawulwa kwekhwalithi okuqinile kanye nokuhlolwa kwala mapayipi ensimbi kubalulekile. ...
Funda kabanzi