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izinga eliphezulu Isikhwama se-drainage yezokwelapha esilahlwayo
Isicelo:
*Ngokusetshenziswa okukodwa, ikakhulukazi ukuqoqwa komchamo ohamba phambili nomchamo ngemva kokuhlinzwa
*Yenziwe nge-PVC yebanga lezokwelapha, ayinabo ubuthi
*Amandla ahlukahlukene: 2000ml, 1500ml, 1000ml, 100ml noma ngokusho kwesidingo samakhasimende
*Uhlobo lwevalvu: Ivalve yokudonsa/Ivalve esontekile/i-valve ephambanayo noma ngaphandle kwevalvu
*Ngevalvu engabuyi, ene-pothook
*Ifakwe inzalo ngegesi ye-EO