1. NBR (nitrile butadiene rubber valve Umuyoboro wa solenoid ukorwa muri butadiene na acrylonitrile na emulion polymerisation.Rubber ya Nitrile ikorwa cyane nubushyuhe buke bwa emulsion polymerisation.Ifite amavuta meza cyane, irwanya kwambara cyane, irwanya ubushyuhe bwiza hamwe no gukomera.T ...
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