Yog tias koj muaj lus nug txog kev hais lus lossis kev koom tes, thov koj xa email tuaj rau peb ntawmadmin@yongxingflange.comlos yog siv daim ntawv nug nram qab no. Peb tus neeg muag khoom yuav tiv tauj koj hauv 24 teev. Ua tsaug rau koj txaus siab rau peb cov khoom.
Raws li cov xyoo dhau los ntawm kev ua haujlwm nag lossis daus, peb muab ntau pua (yooj yim siv, txhim khu kev qha, tus nqi qis) rau cov neeg siv khoom thoob ntiaj teb thiab cov haujlwm.
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