The construction includes hardware construction, software construction and teaching material construction.
这种建设包括硬件建设、软件建设和教材建设。
Sale of metal material and general hardware;
销售金属材料、五金交电；
Hardware accessories, smooth operation fine durable material comfort.
五金配件材质精细耐用，操作顺畅舒适。
Hardware accessories, smooth operation fine durable material comfort.
五金配件材质精细耐用，操作顺畅舒适。
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