Isikhwama Somchamo senziwe nge-PVC, PE, PP, HDEP kanye ne-ABS ebangeni lezokwelapha.Iqukethe isikhwama, ishubhu yokuxhuma, isixhumi se-taper, i-outlet engezansi nesibambo.
I-1.Nge-valve engabuyi ukugwema ukugeleza komchamo, ukwandisa ukuphepha kwesiguli
2. Ishubhu enobuso obushelelezi futhi imelana ne-kink