Zoo siab txais tos rau peb lub vev xaib!
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Ntsia thawv conveyor
Screw conveyors tau siv dav hauv ntau qhov kev lag luam xws li cov khoom siv hauv tsev, lub zog, tshuaj lom neeg, metallurgy, thee, tshuab, teeb pom kev lag luam, khoom noj khoom haus thiab zaub mov lag luam.
