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Guidelines for Industries – Andhra Pradesh . Guidelines for Cement Grinding Units (Upto 50 TPD) The distance between the boundary of the site and boundary of the. i) National Highway shall be -100 m Chapter 82 - Metal Processing and Metal . Process. Material input. Air emissions. Process wastes. Other wastes. Copper concentration. Copper ore, water, chemical reagents, thickeners : Flotation wastewaters How mercury is made - material, history, . Mercury is one of the basic chemical elements. It is a heavy, silvery metal that is liquid at normal temperatures. Mercury readily forms alloys with other ...    Read More