Izinzuzo zamapayipi we-PPR

Ekwakhiweni, uhlelo lwezimboni nezolimo, ukuphepha nokuqina kwezinhlelo zamapayipi kuhlobene ngokuqondile nezindleko zephrojekthi kanye nokusebenza kahle kwesikhathi eside. Ipayipi le-PPR (ipayipi ye-polypropylene engahleliwe ye-copolymer) isibe…