Nyob rau hauv xyoo tas los no, nrog rau kev loj hlob sai ntawm lub zog tshiab tsheb, cov cuab yeej siv hluav taws xob thiab lwm yam kev lag luam, silicon steel coil kev lag luam tau ua rau lub sijhawm zoo rau kev loj hlob, thiab kev lag luam muaj kev cia siab dav.Raws li cov khoom siv hluav taws xob tseem ceeb, silicon steel ...
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