Hardware: Five metals. In ancient times, it refers to five metals, such as gold, silver, copper, iron and tin, and has been artificially processed into metal objects such as knives, swords and works of art. “Wu Yue Spring and Autumn” four “Lu inner biography” : “Minister wen Yue king Yuan Chang made Ou Ye Zi sword five,… A Zhan Lu, the gold of hardware, the essence of the sun.” According to the “Hanshu · Food annals” on the “gold, knife, turtle, Bei” note: “gold is the five colors of gold, yellow said gold, white said silver, red said copper, green said lead, black said iron. “Han Zhao Ye” Wu Yue Spring and Autumn · Lu Nei biography “:” Minister heard Yue King Yuan Chang made Ou Ye Zi make five swords… A Zhan Lu, the Yin of hardware, the essence of the sun.” Five generations of Qi Ji “Thank people Hui medicine” poem: “Hardware Yuan, nine chain more refined new.” According to “Hanshu · Food Zhi” “Gold, knife, turtle, Bei” Yan Shigu notes: “gold is the gold of the five colors. Those who are yellow say gold, those who are white say silver, those who are red say copper, those who are green say lead and those who are black say iron.” Sun Yat-sen “Declaration of the Xingzhong Association” : “Today, strong neighboring ring, strong and strong, long coveted our Chinese hardware wealth, the number of products.” 2, it is also used as a general term for metal products. For example: hardware store. 3. See “Five Zhu”. Name of an ancient coin. A kind of elm money. Jin Yuan good ask “continued Yi Jian Zhi · ancient money” : “Yuzhu, its text one said ‘hardware’, one said ‘five Zhu’, almost points’ Baht ‘word for two also.” Hardware is the traditional hardware products, also known as “hardware”. Refers to gold, silver, copper, iron, tin five metals. By manual processing can be made into knives, swords and other art or metal devices. The hardware of modern society is more extensive, such as hardware tools, hardware parts, daily hardware, building hardware and security supplies. Most hardware products are not final consumer goods. The hardware industry is developing very fast, and the most concentrated market in the traditional hardware industry is mainly concentrated in mechanical hardware, architectural hardware, decorative hardware, and daily hardware. The trend of industrial concentration in the hardware industry is also obvious, and the domestic hardware industry is mainly concentrated in Guangdong, Zhejiang, Jiangsu, Shanghai, Hebei, Shandong and other economically developed provinces and regions. Traditional hardware enterprise products are relatively single, many enterprises only to other manufacturing enterprises to do supporting, accessories, the dependence on manufacturing enterprises is relatively strong, and the response to market demand is also very slow. Traditional hardware enterprises do not pay attention to the development of new products and the extension of the market, resulting in the lack of sustainable competitiveness of enterprises, in the face of more and more specialized market demand, more and more fierce competition, many early rapid development of hardware enterprises are weak follow-up.