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This Japanese Industrial Standard specifies I section steels to be used for supports of mine and the fish plates for rigid steel arch timbering constructed with I section steels above-mentioned. Hereinafter the former are referred to as the 'I section steels' and the latter as the 'fish plates'.
| Author | JSA |
|---|---|
| Editor | JSA |
| Document type | Standard |
| Format | File |
| Confirmation date | 2016-10-20 |
| ICS | 73.100.10 : Tunnelling and tubing equipment
|
| Number of pages | 13 |
| Year | 1990 |
| Document history | |
| Country | Japan |
| Keyword | JIS 2504;2504;JIS M 2504-1992 |