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Cov hnab looj tes phais pov tseg
Cov hnab looj tes latex, feem ntau siv rau hauv chaw ua haujlwm, xws li chav ua haujlwm, chav kuaj mob, thiab lwm yam, xav tau qhov chaw siab dua. Qhov zoo ntawm cov hnab looj tes latex yog nws muaj qee qhov elasticity, thiab ruaj khov dua, tab sis tiv taus cov roj tsiaj.
