Hardware, refers to the gold, silver, copper, iron, tin, said the five metal materials, hardware is the mother of the industry; the basis of national defense, hardware materials products, usually only divided into two major hardware and hardware. Big hardware refers to steel plate, steel bar, flat iron, universal angle iron, channel iron, iron and all types of iron and steel materials, hardware is architectural hardware, white metal, lock nails, wire, steel wire mesh, wire cut, home hardware , Various tools and more.
The nature and purpose of the hardware should be divided into eight categories of steel materials, non-ferrous metal materials, mechanical parts, transmission equipment, aids, working tools, architectural hardware, home hardware.