قالب:R20
اذهب إلى التنقل
اذهب إلى البحث
The chemical-risk Template:R20 generates the redirection title "R20:_Harmful_by_inhalation" (as the link text for "R20"), which links to article "List of R-phrases" as the description page for all those R-codes. There are dozens of similar R-phrase templates.