What is "hardware"? Hardware refers to five kinds of metals. The word "hardware" first appeared in "Wu Yue Chun Qiu" four "é˜–é—¾å†…ä¼ ": "Chen Wen Yue Wang often made Ou Yezi make five swords, ... a Zhan Lu, hardware of the English, the sun of the fine." According to "Han Shu ·Food and Food" on the 'Gold, Knife, Turtle, Bay' Note: "Gold, that is, the five-color gold, yellow, gold, white, silver, red, copper, green, lead, black, iron "Modern Chinese Dictionary" explains: hardware, refers to gold, silver, copper, iron, tin, refers to metal. Today's hardware is commonly referred to as metal or copper and iron products.
The further application of metal has played an important role in the development of the history of human civilization. Metal products appear in every corner of economic life, political life, and military activities. For example, Zhejiang Yongkang has been called the “Hometown of Baigong†since ancient times, and the hardware handicraft industry has a long history. Since the Southern Song Dynasty, Yongkang coppersmiths and blacksmiths have gone south and north to make a living. In the history, there have been "the hardware craftsmen go to the Quartet, the prefectures and counties are not separated from Kang".
There are many ways to classify hardware. The following small series gives a reference for everyone.
Construction hardware: construction machinery, construction hardware, decorative hardware, plumbing equipment, steel structural joints, fireproof materials, waterproof materials, anti-corrosion materials, insulation materials, steel nails, steel wire, fasteners, monitoring equipment, alarm equipment, sensor materials, etc.;
Hardware tools: power tools, pneumatic tools, hand tools, hydraulic tools, auto maintenance tools, explosion-proof tools, lifting tools, handling tools, measuring tools, tile tools, garden tools, abrasive tools, abrasives, measuring tools, cutting tools, etc.;
Mechanical equipment: general machinery, deceleration machinery, engineering machinery, light industrial machinery, packaging machinery, rubber and plastic machinery, instrument machinery, cleaning machinery, transportation machinery, lifting machinery, woodworking machinery, machining machinery, welding and cutting equipment, welding rods, welding wire , pumps, valves, and various components, accessories, parts, etc.;
Electrical and electrical equipment: electrical equipment, electrical equipment, high-voltage electrical appliances, low-voltage electrical appliances, explosion-proof electrical appliances, vacuum electrical appliances, communication electrical appliances, switching electrical appliances, lighting electrical appliances, wire and cable, cable trays, electric heating equipment, electric heating materials, insulating materials, electronic equipment, instruments, Instruments, switch cabinets, electrical insulation equipment, etc.;
Standard parts: fasteners, keys, pins, pads, bearings, wire ropes, chucks, fasteners, tight fasteners, springs, teeth, grooves, chains, pulleys, couplings, seals, etc.;
Materials: non-ferrous metal profiles, stainless steel products; plastic building materials, plastic products;
Labor security categories: labor insurance supplies, security supplies; environmental protection, purification, dust removal equipment;
Kitchenware: kitchen equipment, refrigeration equipment, food machinery, cooking machinery, hotel supplies;
Lease category: construction machinery, construction machinery, machinery and equipment rental;
The lifting ring nut refers to the part that the nut and the bolt or the screw are screwed together for fastening, and it is an original part that all production machinery must use. The lifting ring nut is a commonly used fixing pendant in engineering. There is a thread under the nut, which can be drilled according to its different specifications and fixed by the screw.
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