| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB 19079.20-2013 | English | 139 |
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Days<=3
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Operation conditions and technical requirements for gymnasium and playground -- Part 20: Ice hockey area
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GB 19079.20-2013
| Valid |
GB 19079.20-2013
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