Encapsulation of hazardous material.
D000965:Antimony; D004349:Drug Packaging; D005031:Ethylenethiourea / Q000506:poisoning; D006801:Humans; D007854:Lead; D009784:Occupational Diseases / Q000517:prevention & control; D011042:Poisons; D013455:Sulfur
D011042:Poisons; D005031:Ethylenethiourea; D007854:Lead; D013455:Sulfur; D000965:Antimony