Classification of hardware materials

Classification of hardware materials

The hardware electrical material simply said that it was some switches, lights, lamps, sockets, wires and cables, chargers, batteries, various instruments and meters, wire nails, meter switches and the like, referring to gold, silver and copper. The five metal materials of iron and tin are said to be the mother of industry; the foundation of national defense and the products of hardware materials are generally divided into two major categories of hardware and hardware.

Big hardware refers to steel plate, steel bar, flat iron, universal angle steel, slot iron, I-shaped iron and various types of iron and steel materials, and the hardware is building hardware, tinplate, lock nails, iron wire, steel wire mesh, wire cutting, home hardware , various tools and so on. As for the nature and use of hardware, there are eight categories of iron and steel materials, non-ferrous metal materials, mechanical parts, transmission equipment, auxiliary tools, work tools, architectural hardware, and household hardware. Material.

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