Muab ob npaug rau-sided coated ntawv khob tshuab txhais: yog ntau lub chaw nres tsheb tsis siv neeg molding tshuab, nws los ntawm cov ntawv tsis siv neeg pub, sealing (adhesive khob phab ntsa), oiling, filling, cua sov, Knurling, curling thiab lwm yam kev nruam xws li photoelectric nrhiav, fault alarm, suav ib...
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