V-khaib siv lub tshuab nqus tsev yog ib hom ntawm kev rov qab siv nqus tsev vacuum. Nws yog tsuas yog siv nyob rau hauv pem hauv ntej ntawm conveyor khoov pulley ntawm txoj siv conveyor thiab nyob rau hauv pem hauv ntej ntawm qhov hnyav ntsug Tensioning ntaus ntawv. Nws muaj cov yam ntxwv ntawm cov kua qaub thiab alkali tsis kam, nplaim taws retardant thiab antistatic, siab tsis kam ua kev puas tsuaj. Cov hniav yog ua los ntawm cov zog polyurethane, v-puab tsim ua kom muaj kev siv tshuab ntxhua khaub ncaws kom zoo tsis zoo tsis siv neeg thaum tus hniav ris tawm.