I-valve ye-pneumatic enezindawo ezimbili i-valve ehlehlayo enezindawo ezimbili kanye namachweba amathathu ezindawo zomoya.Kunezinhlobo eziningi zazo, futhi zingahlukaniswa zibe ama-valve okulawula kagesi, ama-valve okulawula umoya, ama-valve okulawula umshini, ama-valve okulawula okwenziwa ngesandla, ama-valve onyawo nokunye...
Funda kabanzi