Kala-soocidda Heerka PVC: Fahamka Noocyada Kala Duwan ee Ku-xidhnaanta Valve ee PVC
PVC, ama chloride polyvinyl, waa shay la taaban karo oo si ballaaran loo isticmaalo soo saarista badeecooyinka kala duwan, oo ay ku jiraan qalabyada waalka. Markay timaaddo qalabka ku rakibida valve PVC, waxaa lagama maarmaan ah in la fahmo nidaamka kala-soocidda caadiga ah ee loo isticmaalo in lagu kala saaro ...
eeg faahfaahinta