Di-valve tsa "NSEN" cha ba nako e telele ba ne ba thabela le botumo bo botle ho indasteri e.
Di-valve hao o phethahetse aspiration rona.
NSEN thehilweng ka 1983, ke kgwebo saense le theknoloji ho khethehileng ho etsa thepa tšepe ho tšepe tiiso valve serurubele le ya go kopanya belofo ntshetsopeleng, tlhahiso, thekiso le tšebeletso.
Over 30 boiphihlelo lilemo, NSEN ea hahileng sehlopha tsitsitseng ea litalenta high quality, ba bona ba ho feta 20 litheknishiene tsa litlotla phahameng le seka-phahameng ba 'nile ba kopanela ho ...
Bakeng sa dipatlisiso ka lihlahisoa tsa rona kapa cenik,
ka kopo siea ya hao ya imeile ho rōna 'me re tla buisana ka hare ho lihora tse 24.