PE multi-layer yeeb nkab extrusion kab
PE multi-txheej yeeb nkab extrusion kab tuaj yeem ua 2, 3, 4, 5 txheej ntawm cov kav dej los ntawm ntau lub tshuab tseem ceeb compound extrusion. Rau kev tsim cov yeeb nkab ntau txheej, cov txheej txheem ntau dua, cov ntaub ntawv ntau dua, nws nyuaj rau tsim. Txawv txheej kuj yuav h...
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