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Nrhiav
Cov khoom tawg-pov thawj damper actuator yog ib yam khoom tshiab uas tau tsim los ntawm peb lub tuam txhab hauv xyoo 2018. Feem ntau yog siv rau hauv petrochemical, plua plav thiab lwm yam kev pheej hmoo siab.Tam sim no, cov khoom no tau lees paub los ntawm cov neeg siv khoom hauv Singapore.Nws tau raug ntsia rau hauv qhov chaw nres tsheb roj ntawm lub xeev cov tuam txhab hauv Singapore, thiab nws qhov kev ua tau zoo tau ruaj khov.