Iimveliso zeFektri yeValve yeNSW

Singumthengisi weeValve zaseTshayina ovela eTshayina, singumzi-mveliso weValve yeBhola, iValve yeSango, i-ESDV, iValve yokujonga, iValve yeGlobe, iValve yePlug, iiValve zeButterfly kunye neeActuators.