[A flask from polyethylene and its hygienic significance].
D003297:Cooking and Eating Utensils; D006801:Humans; D020959:Polyethylene; D011095:Polyethylenes; D014881:Water Supply
D011095:Polyethylenes; D020959:Polyethylene
COOKING AND EATING UTENSILS; POLYETHYLENES; WATER SUPPLY