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Jan 12, 2017Cob phenolic ciav Stability ThermalNws nimno zog los yog cracks ua ntej siv successive scale rau qhov kub thiab txias 140-175 ℃...saib ntxiv -
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Koj tuaj yeem tiv tauj peb ntawm xov tooj, email lossis online daim ntawv hauv qab no. Peb tus kws tshaj lij yuav tiv tauj koj sai sai.
Hu rau tam sim no!