I-PVC butterfly valve iyi-valve ye-butterfly yepulasitiki.I-valve ye-butterfly yepulasitiki inokumelana nokugqwala okuqinile, uhla olubanzi lwezicelo, ukumelana nokugqokwa, ukuqaqa okulula nokugcinwa kalula.Ilungele amanzi, umoya, uwoyela kanye noketshezi lwamakhemikhali abolayo.Umzimba we-valve wakha...
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