Gold is the most precious metal and used for various purposes. It is also used in making ornaments, jewellery, substances, etc. For a pure gold, Hall Marking is the most important introduced system in our society. Hall Marking is an official mark printed and seen on the gold materials to put a confirmation on the material. It is the sign that given materials are made of pure gold. Hall marking system is well developed in our countries.
Answered By RIYA KUMARI
AuthorI am a quick learner and hardworking person. I am so sincere towards my studies. I am most interested in science and technology. I am always curious about knowing something new.

