Txoj kab ncaj nraim hlau nqus tshuab yog ib qho khoom siv hlau hlau ua khoom siv, tuaj yeem ua tau siab, nruab nrab, qis carbon steel hlau, stainless hlau xaim, tooj liab hlau, tooj liab alloy hlau, aluminium alloy hlau, thiab lwm yam, lub extension processing.Qhov yuam kev ntawm direct drawing tshuab yog 0.1% tseeb.Automatic...
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