capacity shale gas auction to be held on october pollution guangzhou unable to handle all the rubbish, incinerators needed looser supervision leads to increased pollution drive to greener economy providing investment opportunities anti-pollution protesters halt construction of copper plant panyu presses...
or make the metal surface and structure more uniform. heat treatment: annealing, tempering, & quenching a number of heat treatment methods are used to modify metal alloys depending on the specific base metal and application. common methods include annealing, tempering and quenching. annealing involves...
steels and metals ( ) cladding - non-ferrous metal ( ) coating machinery ( ) fittings, metal ( ) frameworks, lightweight - metal ( ) galvanization - steels and metals ( ) industrial sheet metal work ( ) ironwork, industrial and building construction ( ) milling - steels and metals ( ) perforation of...