Important Industries of Pakistan.(part one)

Important Industries of Pakistan.(part one)
Pakistan is a developing country and development and progress of a country depends upon its industries.Pakistan has many industries(Big,small)which are playing vital role in development of Pakistan,such as Pakistan Steel Mill and many others.Gujranwala and Sialkot are famous for surgery tools and other medical products all over the world.These all industries are very important for development of Pakistan.Pakistan's Steel,Synthetic Fibre, and Textile products are very popular all over the world.
Steel Industry:
According to the need,iron is melted,and hot air is passed to make it free of impurities.Ore is an important source of iron.By mixing oxygen in it ,a compound is made.Ore is mixed with carbon and limestone and on heating it is changed into pig iron.Adding scrape iron and limestone into pig iron,it is sent back to the furnace to get pure iron.Iron is mixed with carbon or sometimes with other elements to produce extra hardness according to necessity.It is called steel ,which is very very hard than common iron.Ordinary steel contains carbon upto 1.7%.It is used for building plazas,factories,ships,aeroplanes and car bodies.To save from rust these may be coated with paint and plastic or with protective layer of zinc.Stainless steel is a mixture(chromium,molybdenum,nickel)which is used to make surgery tools and home appliances and every  type of light and heavy machinery.Pakistan Steel Mill is providing raw material for engineering and construction industries,And for those lower level industries,which depend upon Pakistan Steel Mills products.As Pakistan has iron resources,so steel mill prepares millions of tonnes of steel.Though Pakistan's steel products are very popular but surgery tools are at the top of this list.Gujranwala and Sialkot are famous for these products all over the world.
Pharmaceutical Industry:
Pharmaceutical are medical products,which are prescribed by doctors for different diseases.The place where these products are prepared is called pharmacy.Pharmacy simply is the preparation of medicines.The industry linked with the preparation of medicine is called as Pharmaceutical industry.Earlier we are dependent mostly on imported medicines,But gradually attention was given to Pharmaceutical Industry.Now we prepare most of the  medicine in our country which is Pakistan.Pharmaceutical Industry is based on Pharmaceutical chemistry which is of course a branch of chemistry in which preparation of new compounds,its testing and its effects on the human health are examined.
Leather Industry:
Leather is usually obtained from the hides(skins)of different animals like sheeps ,camels,buffalos,horses, etc.Apart from this ,leather is also prepared from different chemicals.It is called artificial leather.Skins or hides are passed through different processes,which is called tannery.Finished leather from tannery  is used for different purposes for example leather garments purses,jackets,attache cases.Leather garments are mostly made in Kasur,Gujranwala, Sialkot and Faisalabad  are popular in many foreign countries like America,United Kingdom and Europe etc.Leather industries of Pakistan prepare leather mostly from hides or skins.Leather is a     very beautiful product.We can use it for many purposes like making of shoes,purses of girls and many other garment products.Leather is a silken material and it looks very beautiful in shoes and garments.