常見例句雙語例句We are now going for a new project of changing the existing copper pipe to seamless Carbon pipe. (MS) Our requirement will be several tons per month.我們現(xiàn)在進行將現(xiàn)有的銅琯變成無縫碳琯的新項目。我們每月都將需要幾噸銅琯。 返回 seamless copper pipe