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Sib Nqus Sib Nqus Lifter
Cov tshuab nqa cov hlau nplaum ruaj khov yog siv rau kev nqa cov phaj steel thiab hloov cov hlau kheej, vim tias lub teeb hnyav, yooj yim ntawm kev ua haujlwm thiab lub zog nqus, cov tshuab nqus hlau nqa tau dav siv hauv nkoj nkoj, chaw tsim khoom, tsheb thauj khoom thiab tshuab kev lag luam.