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張家口開(kāi)關(guān)座O
發(fā)布日期：2018/10/12 0:00:00
工業(yè)上常見(jiàn)的拉手材料是不銹鋼及鋅合金、鋁合金、及尼龍等幾種材質(zhì)，由于工業(yè)拉手在使用性能及使用環(huán)境上要求比較高，所以對(duì)其材料及加工工藝各方面的要求也相對(duì)較嚴(yán)格。
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