Muaj ob pawg ntawm yam uas cuam tshuam rau qhov zoo ntawm seamless raj: steel zoo thiab dov txheej txheem.Ntau yam ntawm cov txheej txheem dov tau tham ntawm no.Qhov tseem ceeb cuam tshuam yog: kub, txheej txheem hloov, cuab yeej zoo, txheej txheem txias thiab lubrication, tshem tawm ...
Nyeem ntxiv