/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: AhmedHassan8 https://cdn.slidesharecdn.com/profile-photo-AhmedHassan8-48x48.jpg?cb=1608516625 Have an experience in water,waste water,food analysis , lab. instrumentation , environmental laboratories , analytical chemistry , Microbiology ISO 17025 OHSAS 18001 ISO 14001 QC/QA 7