Iingxowa zeValve eziNyibilikayo eziphantsi

ibhetshi ephantsi enyibilikayo efaka iingxowa zevalvu, ikakhulu ezisetyenziselwa ukupakishwa kwe-5kg-25kg yezongezo zerabha kunye nomgubo wentlaka okanye iipellets, umz. icarbon emnyama, i-zinc oxide, isilica, iCPE.