/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: hemangmehta3 https://cdn.slidesharecdn.com/profile-photo-hemangmehta3-48x48.jpg?cb=1572526544 I have a good knowledge in production like MNSO4 (manganese sulphate ) AND CAUSTIC SODA (NAOH). Also good experience in air pollution control.